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King Fahd University of Petroleum and Minerals
College of Applied and Supporting Studies
Preparatory Physical Science Program
PYP001
Major-1 Exam
Term: 142
Tuesday, March 10, 2015
8:00 PM
Name:___________________________________
ID:________________________________
Code: 0
DO NOT TURN THIS PAGE UNTIL YOU ARE
TOLD TO DO SO.
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 1
*Read the following (20) questions and choose the right answer:
1 Figure (1) represents the motion of a swimmer during a 30-minute workout. What is
the speed of the swimmer at 2:25 PM ?
A) 80 m/min.B) 40 m/min.C) 47 m/min.D) 27 m/min.E) Zero.
2 Which best describes why projectiles move in a curved path?
A) They have constant horizontal velocity and vertical acceleration.B) They have horizontal acceleration and constant vertical velocity.C) They have constant horizontal velocity and constant vertical velocity.D) They have horizontal and vertical accelerations.E) None of these.
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 2
3 A cyclist moves 5 km east, 3 km south, then 5 km west. What is the displacement of the cyclist?
A) 3 km, south.B) 3 km, north.C) 13 km, south.D) 13 km, north.E) Zero.
4 A car traveled 50 km east in 30 minutes, stopped at a gas station for 15 minutes, then traveled again 100 km north in 45 minutes. What is the average speed of the car?
A) 100 km/h.B) 75 km/h.C) 120 km/h.D) 150 km/h.E) 50 km/h.
5 A car accelerates from rest by 5 km/h.s northward for 20 seconds, then accelerates by 4 km/h.s southward for 10 seconds. What is the final velocity of the car?
A) 60 km/h northward.B) 100 km/h northward.C) 140 km/h southward.D) 40 km/h southward.E) 140 km/h northward
6 A hurricane moves toward a house with 30 km/h west. A car moves away from the house with 100 km/h west. What is the velocity of the hurricane relative to the car?
A) 70 km/h, east.B) 70 km/h, west.C) 130 km/h, west.D) 130 km/h, east.E) 30 km/h, west.
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 3
7 The gravitational field strength (g) at the surface of Earth (which is at a distance R from the center of Earth) is approximately 9.80 N/kg. What would be the gravitational field strength at height (R) above the Earth’s surface?
A) 2.45 N/kg.B) 4.90 N/kg.C) 9.80 N/kg.D) 19.6 N/kg.E) 39.2 N/kg.
8 Which of the following sets of forces are balanced forces when act on an object?
A) (5 N east, 10 N north, 5 N west, 10 N south)B) (20 N east, 10 N north, 10 N west, 20 N south)C) (10 N east, 10 N north, 20 N west, 20 N south)D) (30 N east, 10 N north, 20 N west, 20 N south)E) (20 N east, 15 N north, 10 N west, 5 N south)
9 Inertia of an object depends on its _______.
A) mass.B) speed.C) momentum.D) weight.E) volume.
10 A sky diver jumps from a helicopter and opens his parachute. If the mass of the sky diver and his parachute is m, what is his acceleration when the air resistance opposing his motion equals half of his weight?
A) 4.9 m/s2.B) 9.8 m/s2.C) Zero.D) 20 m/s2.E) 15 m/s2.
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 4
11 A 50-kg boy is standing on a skateboard near a wall. If the boy pushes on the wall by a 25-N force, what would be his acceleration away from the wall?
A) 0.50 m/s2.B) Zero.C) 2.0 m/s2.D) 1250 m/s2.E) Cannot be found.
12 Which of the following statements is FALSE?
A) Astronauts float inside a spacecraft orbiting Earth because the gravitational force acting on them is zero.
B) When you push horizontally on a desk and the desk doesn’t move, the static friction between the desk and the floor is equal in size but opposite in direction to your pushing force.
C) Rolling friction is smaller than sliding friction.D) When a car rounds a level curve, friction between the tires and the
road acts as the centripetal force.E) When you throw an object downward, it will be in free fall if there is
no air resistance.
13 A 1-kg object is moving west at a constant speed of 10 m/s. A force of 100 N, along the east direction, is applied on the object for a time of 0.01 s. The momentum of the object at the end of the 0.01 s interval is
A) 9.0 kg.m/s west.B) 9.0 kg.m/s east.C) 1.0 kg.m/s west.D) 11 kg.m/s east.E) 11 kg.m/s west.
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 5
14 A white ball of momentum 4.0 kg.m/s east, hits a black ball so that the total momentum of both balls after collision is 3.0 kg.m/s east. What was the momentum of the black ball before collision?
A) 1.0 kg.m/s westB) 7.0 kg.m/s eastC) 3.0 kg.m/s west.D) 4.0 kg.m/s east.E) 7.0 kg.m/s west.
15 How much work is done in lifting a 10-kg box straight up on to a shelf that is 2.0 m high?
A) 196 J.B) 20 JC) 5.0 JD) 0.50 JE) Zero
16 An input force of 50.0 N is used to lift an object weighing 200 N with a system of pulleys. What is the mechanical advantage of the pulley system?
A) 4.00B) 0.250C) 1000D) 250E) 150
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 6
17 A 36-kg child slides down a playground slide that is 2.5 m high as in the figure below, what is the mechanical energy of the child at the bottom of the slide? (Assume the friction is zero)
A) 882 JB) 90 JC) ZeroD) 353 JE) 1764 J
18 If a runner’s power is 500 W as he runs, how much chemical energy does he convert into other forms of energy in 15.0 minutes?
A) 450 kJB) 7.50 kJC) 0.556 JD) 1.80 JE) 500 J
PYP 001 First Major Exam Code: Term: 142 Tuesday, March 10, 2015
Created by Dr. Tayseer Abu AlrubPage: 7
19 You drop a 0.06-kg ball from a height of 1.0 m above a hard, flat surface. The ball strikes the surface and loses 0.14 J of its energy. It then bounces back upward. How much kinetic energy does the ball have just after it bounces off the flat surface?
A) 0.45 JB) 0.20 JC) 0.59 JD) 0.73 JE) 0.14 J
20 Which of the following is Not a mechanical energy?
A) Chemical Energy.B) Elastic energy.C) Gravitational energy.D) Kinetic energy.E) None of these.
King Fahd University of Petroleum and Minerals
College of Applied and Supporting Studies
Preparatory Physical Science Program
PYP001
MAJOR-2 EXAM
Term: 142
Tuesday, April 18, 2015
6:30 PM
Name:___________________________________
ID:________________________________
CODE: 0
DO NOT TURN THIS PAGE UNTIL YOU ARE
TOLD TO DO SO.
PYP 001 Second Major Exam Code: Term: 142 Tuesday, April 18, 2015
Created by Dr. Tayseer Abu AlrubPage: 1
*Read the following (20) questions and choose the right answer:
1 The following graph shows the heating curve of one gram of water. In which portion(s) the state of water changes?
A) In (b) and (d).B) In (a), (c), and (e).C) Only in (c).D) In (a) and (d).E) In (b) and (e).
2 Which of the following statements is TRUE ?
A) Some kinds of solids do not have a specific melting point.B) Heat of fusion is the energy required to change a substance from
liquid to gas at its boiling point.C) Most of the ordinary matter in the universe is in the gaseous state. D) Sublimation is the process of a gas changing to liquid.E) When a liquid crystal melts, it will lose its all ordered geometric
arrangement.
PYP 001 Second Major Exam Code: Term: 142 Tuesday, April 18, 2015
Created by Dr. Tayseer Abu AlrubPage: 2
3 What is the buoyant force acting on a submerged 1.00104 m3 block in water if the density of water is 1000 kg/m3?
A) 0.980 NB) 98.0 NC) 100 ND) 9.80 NE) Can not be found.
4 A hydraulic lift is used to lift a heavy machine that is pushing down on a 3.0 m2 platform with a force of 4,000 N. What force must be exerted on a 0.08-m2 piston to lift the heavy machine?
A) 107 NB) 1,333 NC) 150,000 ND) 0.027 NE) 50,000 N
5 When the flow of a fluid is restricted,
A) its velocity increases and its pressure decreases.B) its velocity decreases and its pressure increases.C) its velocity increases and its pressure increases.D) its velocity decreases but its pressure remains unchanged.E) its velocity and its pressure remain unchanged.
6 A weather balloon has a volume of 100 L when it is released from sea level, where the pressure is 101 kPa. What is the atmospheric pressure on the balloon when it has grown to a size of 190 L?
A) 53.2 kPaB) 10,100 kPaC) 192 kPaD) 0.532 kPaE) 1.90 kPa
PYP 001 Second Major Exam Code: Term: 142 Tuesday, April 18, 2015
Created by Dr. Tayseer Abu AlrubPage: 3
7 A 4.0-L balloon at room temperature (20ºC) is placed in a freezer at -20ºC. What is the volume of the balloon after it cools down in the freezer?
A) 3.5 LB) 0.86 LC) 0.01 LD) -4.0 LE) 4.6 L
8 Which of the following is NOT a mixture?
A) Helium.B) Smoke.C) Air.D) Milk.E) Paint.
9 A _______ is a heterogeneous mixture with particles that never settle.
A) Colloid.B) Suspension.C) Solution.D) Compound.E) None of these.
10 Which of the following statements applies to mixtures?
A) They are composed of two or more substances.B) They have a fixed composition.C) Cannot be separated by physical means.D) They always contain the same proportions of the substances of which
they are made. E) They are made up of atoms that are all alike.
PYP 001 Second Major Exam Code: Term: 142 Tuesday, April 18, 2015
Created by Dr. Tayseer Abu AlrubPage: 4
11 Which of these warnings refers to a chemical property of the material?
A) Highly toxic.B) Fragile.C) Sharp object.D) Shake well.E) Slippery floor.
12 An example of a physical change is
A) Sublimation of dry ice at room temperature.B) Rusting of a nail.C) Burning a log of wood.D) A copper statue turning to green.E) Ripening of an apple.
13 Which physical property is involved in the distillation of two liquids mixed together?
A) Boiling point.B) Color.C) Surface tension.D) Viscosity.E) Melting point.
14 When methane reacts with oxygen, the products are carbon dioxide and water. How many grams of water are formed if 30 g of methane react completely with 98 g of oxygen to form 76 g of carbon dioxide?
A) 52 g.B) 128 g.C) 76 g.D) 204 g.E) Zero.
PYP 001 Second Major Exam Code: Term: 142 Tuesday, April 18, 2015
Created by Dr. Tayseer Abu AlrubPage: 5
15 Which of the following elements has properties that are similar to Calcium?
A) Beryllium.B) Scandium.C) Lithium.D) Potassium.E) Cesium.
16 Which term describes silicon?
A) Metalloid.B) Metal.C) NonmetalD) Noble gas.E) None of these.
17 Strontium (Sr) has four stable, naturally occurring isotopes: Sr-84, Sr-86, Sr-87, and Sr-88. Which isotope is most abundant in a sample of strontium?
A) Sr-88.B) Sr-84.C) Sr-87.D) Sr-86.E) Their abundances are equal.
PYP 001 Second Major Exam Code: Term: 142 Tuesday, April 18, 2015
Created by Dr. Tayseer Abu AlrubPage: 6
18 Which of the following elements is represented by the following electron dot diagram?
A) Antimony (Sb).B) Sulfur (S).C) Fluorine (F).D) Aluminum (Al).E) Sodium (Na).
19 What is the number of neutrons in uranium-235?
A) 143B) 92C) 238D) 235E) 3
20 If two protons and two neutrons are removed from the nucleus of an oxygen-16 atom, a nucleus of which element remains?
A) CarbonB) BerylliumC) MagnesiumD) NeonE) Oxygen
The Periodic Table of the Elements
1H
Hydrogen
1.00794
2HeHelium
4.003
3Li
Lithium
6.941
4Be
Beryllium
9.012182
5B
Boron
10.811
6C
Carbon
12.0107
7N
Nitrogen
14.00674
8O
Oxygen
15.9994
9F
Fluorine
18.9984032
10NeNeon
20.1797
11NaSodium
22.989770
12Mg
Magnesium
24.3050
13Al
Aluminum
26.981538
14Si
Silicon
28.0855
15P
Phosphorus
30.973761
16S
Sulfur
32.066
17Cl
Chlorine
35.4527
18ArArgon
39.948
19K
Potassium
39.0983
20Ca
Calcium
40.078
21Sc
Scandium
44.955910
22Ti
Titanium
47.867
23V
Vanadium
50.9415
24Cr
Chromium
51.9961
25Mn
Manganese
54.938049
26FeIron
55.845
27CoCobalt
58.933200
28NiNickel
58.6934
29CuCopper
63.546
30Zn
Zinc
65.39
31GaGallium
69.723
32Ge
Germanium
72.61
33AsArsenic
74.92160
34Se
Selenium
78.96
35Br
Bromine
79.904
36Kr
Krypton
83.80
37Rb
Rubidium
85.4678
38Sr
Strontium
87.62
39Y
Yttrium
88.90585
40Zr
Zirconium
91.224
41Nb
Niobium
92.90638
42Mo
Molybdenum
95.94
43Tc
Technetium
(98)
44Ru
Ruthenium
101.07
45Rh
Rhodium
102.90550
46Pd
Palladium
106.42
47AgSilver
107.8682
48Cd
Cadmium
112.411
49In
Indium
114.818
50Sn
Tin
118.710
51Sb
Antimony
121.760
52Te
Tellurium
127.60
53I
Iodine
126.90447
54XeXenon
131.29
55CsCesium
132.90545
56BaBarium
137.327
57La
Lanthanum
138.9055
72Hf
Hafnium
178.49
73Ta
Tantalum
180.9479
74W
Tungsten
183.84
75Re
Rhenium
186.207
76Os
Osmium
190.23
77Ir
Iridium
192.217
78Pt
Platinum
195.078
79AuGold
196.96655
80HgMercury
200.59
81Tl
Thallium
204.3833
82PbLead
207.2
83Bi
Bismuth
208.98038
84Po
Polonium
(209)
85At
Astatine
(210)
86RnRadon
(222)
87Fr
Francium
(223)
88RaRadium
(226)
89Ac
Actinium
(227)
104Rf
Rutherfordium
(261)
105Db
Dubnium
(262)
106Sg
Seaborgium
(263)
107Bh
Bohrium
(262)
108Hs
Hassium
(265)
109Mt
Meitnerium
(266)
110
(269)
111
(272)
112
(277)
113 114
58CeCerium
140.116
59Pr
Praseodymium
140.90765
60Nd
Neodymium
144.24
61Pm
Promethium
(145)
62Sm
Samarium
150.36
63Eu
Europium
151.964
64Gd
Gadolinium
157.25
65Tb
Terbium
158.92534
66Dy
Dysprosium
162.50
67Ho
Holmium
164.93032
68ErErbium
167.26
69TmThulium
168.93421
70Yb
Ytterbium
173.04
71Lu
Lutetium
174.967
90Th
Thorium
232.0381
91Pa
Protactinium
231.03588
92U
Uranium
238.0289
93Np
Neptunium
(237)
94Pu
Plutonium
(244)
95Am
Americium
(243)
96CmCurium
(247)
97Bk
Berkelium
(247)
98Cf
Californium
(251)
99Es
Einsteinium
(252)
100FmFermium
(257)
101Md
Mendelevium
(258)
102No
Nobelium
(259)
103Lr
Lawrencium
(262)
1995 IUPAC masses and Approved Names from http://www.chem.qmw.ac.uk/iupac/AtWt/masses for 107-111 from C&EN, March 13, 1995, p. 35112 from http://www.gsi.de/z112e.html
King Fahd University of Petroleum and Minerals
College of Applied and Supporting Studies
Preparatory Physical Science Program
PYP001
FINAL EXAM
Term: 142
Thursday, May 21, 2015
12:30 PM
Name:___________________________________
ID:________________________________
CODE: 0
DO NOT TURN THIS PAGE UNTIL YOU ARE
TOLD TO DO SO.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 1
READ THE FOLLOWING (30) QUESTIONS AND CHOOSE THE CORRECT ANSWER.
1 Which of the following methods is NOT used for soil conservation?
A) Active damping.B) Fertilization.C) Crop rotation.D) Allowing soil to go fallow.E) Contour plowing.
2 Which of the following statements is correct?
A) The breakdown of rocks due to chemical weathering can add nutrients to soil that plants need to grow.
B) An increase in surface area of a material decreases its weathering rate.C) Frost wedging occurs when water collects in the cracks of a rock and
then evaporates.D) Rocks in flat, low lying areas are more susceptible to weathering than
rocks on steep slopes.E) Soils always contain six soil horizons (O, A, E, B, C, R).
3 The land area that gathers water for a major river is called
A) Drainage basin.B) Delta.C) Floodplain.D) alluvial fans.E) Barrier islands.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 2
4 When glaciers melts, glacial deposits create different land forms.Which of the following is a landform created by glacial deposits?
A) Outwash plain.B) Loess.C) Spits.D) Dunes.E) Barrier islands.
5 Which of the following erosional agents causes the formation of canyons with steep sides?
A) Rivers.B) Waves.C) Mass wasting.D) Glaciers.E) Wind.
6 Suppose an aquifer is known to be 200 km wide and 75.0 km long. If its average thickness is 50.0 km and it has an average porosity of 3.00%, estimate how many cubic kilometers of water could potentially be stored in the aquifer?
A) 22,500 km3.B) 750,000 km3.C) 25,000,000 km3.D) 2,250,000 km3.E) 250,000 km3.
7 The layer of material that slows or stops the movement of groundwater is called
A) aquitard.B) aquifer.C) water table.D) saturated zone.E) unsaturated zone.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 3
8 A rock sample was dated using radioactive isotope. Measurements indicate that the ratio of parent-to-daughter isotopes is 1:15. If the half life of the parent isotope is 7,000 years, how old is this rock?
A) 28,000 years.B) 21,000 years.C) 14,000 years.D) 35,000 years.E) 42,000 years.
9 Select the relative dating principle that states “In a sequence of undisturbed sedimentary rocks, the oldest rock layer is on the bottom.”
A) Superposition.B) Original horizontality.C) Cross-cutting relationships.D) Unconformities.E) Uniformitarianism.
10 Which evidence was NOT used by Wegener to support the continental drift hypothesis?
A) Matching magnetic polarities.B) Matching of continents’ coastlines.C) Correlation of fossils among the continents.D) Mountain-range matching among the continents.E) None of these.
11 What process creates a deep-sea trench?
A) Subduction.B) Earthquakes.C) Transform boundary.D) Divergent plate boundary.E) Continental collision.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 4
12 In transform plate boundary,
A) plates slides horizontally past each other in opposite directions.B) two plates move apart along a mid-ocean ridge (MOR).C) plates collide and buckle upward to form a high range of folded
mountains.D) the denser plate dives beneath the continent.E) new rocks will be created.
13 Seismologists use the lag time of an earthquake to determine
A) how far away the epicenter was.B) the type of fault.C) the depth of the earthquake.D) how long the earthquake will last.E) the strength of the earthquake.
14 Which of the following statements is FALSE?
A) The Richter scale ranks earthquakes according to the amount of damage they cause.
B) A fault is a crack in Earth’s crust along which rock has moved.C) An object shape is permanently changed in plastic deformation.D) The point of origin for an earthquake is called focus.E) Nearly 95 percent of all earthquakes occur along plate boundaries.
15 In which type of stress an object will be twisted?
A) Torsion.B) Shear.C) Tension.D) Compression.E) None of these.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 5
16 Shadow zones occur for two reasons. One is that S-waves cannot travel through Earth’s________.
A) Outer core.B) Crust.C) Inner core.D) Mantle.E) Surface.
17 In which state of matter the earth’s inner core exists?
A) Solid.B) Liquid.C) Gas.D) Plasma.E) A mixture of solid and liquid.
18 Which type of volcanoes are made of layers of ash and lava?
A) Composite volcanoes.B) Cinder cone volcanoes.C) Parasitic cone volcanoes.D) Shield volcanoes.E) None of these.
19 Which of the following statements is FALSE?
A) In hot spots, volcanoes form where tectonic plates collide along subduction zones.
B) The amount of dissolved gas in magma affects its viscosity.C) Any solid material that erupts from a volcano is classified as
pyroclastic material.D) Water vapor is released more than any other gas in volcano’s
eruption.E) An explosive eruption usually occurs when the magma is thick, sticky
and has high viscosity.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 6
20 Which of the following compounds is a nonpolar molecule?
A) CCl4.B) H2O.C) HCl.D) CHCl3.E) HBr.
21 Which of the following compounds has ionic bonds?
A) Al2O3
B) CO2
C) Cl2
D) NH3
E) O3
22 A cyclist must travel 800 km. How many days will the trip take if the cyclist travels 10 h/day at an average speed of 16 km/h?
A) 5.0 days.B) 50 days.C) 80 days.D) 8.0 days.E) 0.5 days.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 7
23 Two balls are at the same height and released at the same time. One ball is dropped and hits the ground 5 s later. The other initially moves horizontally with 13 m/s as in the figure below. When does the second ball hit the ground? (Assume no air resistance)
A) 5 s.B) 7 s.C) 3 s.D) 9 s.E) Cannot be found.
24 Which of the following is TRUE about an object in free fall?
A) It pulls on Earth, and Earth pulls on it.B) Its acceleration depends on its mass.C) It has no inertia.D) Its momentum is constant.E) Its initial velocity is always zero.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 8
25 A skydiver jumps from a helicopter and opens his parachute. If the mass of the skydiver and his parachute is 100 kg, what is the air resistance acting on him when his acceleration is 4.9 m/s2 downward?
A) 490 N.B) 980 N.C) 1470 N.D) 4900 N.E) 4.9 N.
26 A machine has an efficiency of 20 percent. What is the input work if the output work is 140 J?
A) 700 J.B) 7 J.C) 70,000 J.D) 2800 J.E) 28 J
27 A 1.0-kg object is thrown upward with a speed of 30 m/s. At which height its kinetic energy equals its potential energy? (Assume no air resistance)
A) 23 m.B) 46 m.C) 0.77 m.D) 1.5 m.E) 225 m.
PYP 001 FINAL EXAM (MAKE UP) CODE: TERM: 142 SUNDAY, MAY 31, 2015
Created by Dr. Tayseer Abu AlrubPAGE: 9
28 Which of the following statements is TRUE?
A) In a hydraulic lift, the pressure on one side (smaller cylinder) is equal to the pressure on the other side (larger cylinder).
B) When the flow of a fluid is restricted, its velocity decreases and its pressure increases.
C) The volume of a gas is directly proportional to its pressure at constant temperature.
D) The volume of a gas is inversely proportional to the temperature at constant pressure.
E) An object floats on water when the buoyant force is less than its weight.
29 Which of the following is a suspension?
A) River water.B) Tea.C) Steel alloys.D) Clouds.E) Smoke.
30 Which of the following elements has four valence electrons?
A) Silicon (Si).B) Aluminum (Al).C) Phosphorus (P).D) Sulfur (S).E) Calcium (Ca).
ID: A
READ THE FOLLOWING (30) QUESTIONS AND CHOOSE THE CORRECT ANSWER.Answer Section
MULTIPLE CHOICE
1 ANS: A PTS: 1
2 ANS: A PTS: 1
3 ANS: A PTS: 1
4 ANS: A PTS: 1
5 ANS: A PTS: 1
6 ANS: A PTS: 1
7 ANS: A PTS: 1
8 ANS: A PTS: 1
9 ANS: A PTS: 1
10 ANS: A PTS: 1
11 ANS: A PTS: 1
12 ANS: A PTS: 1
13 ANS: A PTS: 1
14 ANS: A PTS: 1
15 ANS: A PTS: 1
16 ANS: A PTS: 1
17 ANS: A PTS: 1
18 ANS: A PTS: 1
19 ANS: A PTS: 1
20 ANS: A PTS: 1
21 ANS: A PTS: 1
22 ANS: A PTS: 1
23 ANS: A PTS: 1
24 ANS: A PTS: 1
25 ANS: A PTS: 1
26 ANS: A PTS: 1
27 ANS: A PTS: 1
28 ANS: A PTS: 1
The Periodic Table of the Elements
1H
Hydrogen
1.00794
2HeHelium
4.003
3Li
Lithium
6.941
4Be
Beryllium
9.012182
5B
Boron
10.811
6C
Carbon
12.0107
7N
Nitrogen
14.00674
8O
Oxygen
15.9994
9F
Fluorine
18.9984032
10NeNeon
20.1797
11NaSodium
22.989770
12Mg
Magnesium
24.3050
13Al
Aluminum
26.981538
14Si
Silicon
28.0855
15P
Phosphorus
30.973761
16S
Sulfur
32.066
17Cl
Chlorine
35.4527
18ArArgon
39.948
19K
Potassium
39.0983
20Ca
Calcium
40.078
21Sc
Scandium
44.955910
22Ti
Titanium
47.867
23V
Vanadium
50.9415
24Cr
Chromium
51.9961
25Mn
Manganese
54.938049
26FeIron
55.845
27CoCobalt
58.933200
28NiNickel
58.6934
29CuCopper
63.546
30Zn
Zinc
65.39
31GaGallium
69.723
32Ge
Germanium
72.61
33AsArsenic
74.92160
34Se
Selenium
78.96
35Br
Bromine
79.904
36Kr
Krypton
83.80
37Rb
Rubidium
85.4678
38Sr
Strontium
87.62
39Y
Yttrium
88.90585
40Zr
Zirconium
91.224
41Nb
Niobium
92.90638
42Mo
Molybdenum
95.94
43Tc
Technetium
(98)
44Ru
Ruthenium
101.07
45Rh
Rhodium
102.90550
46Pd
Palladium
106.42
47AgSilver
107.8682
48Cd
Cadmium
112.411
49In
Indium
114.818
50Sn
Tin
118.710
51Sb
Antimony
121.760
52Te
Tellurium
127.60
53I
Iodine
126.90447
54XeXenon
131.29
55CsCesium
132.90545
56BaBarium
137.327
57La
Lanthanum
138.9055
72Hf
Hafnium
178.49
73Ta
Tantalum
180.9479
74W
Tungsten
183.84
75Re
Rhenium
186.207
76Os
Osmium
190.23
77Ir
Iridium
192.217
78Pt
Platinum
195.078
79AuGold
196.96655
80HgMercury
200.59
81Tl
Thallium
204.3833
82PbLead
207.2
83Bi
Bismuth
208.98038
84Po
Polonium
(209)
85At
Astatine
(210)
86RnRadon
(222)
87Fr
Francium
(223)
88RaRadium
(226)
89Ac
Actinium
(227)
104Rf
Rutherfordium
(261)
105Db
Dubnium
(262)
106Sg
Seaborgium
(263)
107Bh
Bohrium
(262)
108Hs
Hassium
(265)
109Mt
Meitnerium
(266)
110
(269)
111
(272)
112
(277)
113 114
58CeCerium
140.116
59Pr
Praseodymium
140.90765
60Nd
Neodymium
144.24
61Pm
Promethium
(145)
62Sm
Samarium
150.36
63Eu
Europium
151.964
64Gd
Gadolinium
157.25
65Tb
Terbium
158.92534
66Dy
Dysprosium
162.50
67Ho
Holmium
164.93032
68ErErbium
167.26
69TmThulium
168.93421
70Yb
Ytterbium
173.04
71Lu
Lutetium
174.967
90Th
Thorium
232.0381
91Pa
Protactinium
231.03588
92U
Uranium
238.0289
93Np
Neptunium
(237)
94Pu
Plutonium
(244)
95Am
Americium
(243)
96CmCurium
(247)
97Bk
Berkelium
(247)
98Cf
Californium
(251)
99Es
Einsteinium
(252)
100FmFermium
(257)
101Md
Mendelevium
(258)
102No
Nobelium
(259)
103Lr
Lawrencium
(262)
1995 IUPAC masses and Approved Names from http://www.chem.qmw.ac.uk/iupac/AtWt/masses for 107-111 from C&EN, March 13, 1995, p. 35112 from http://www.gsi.de/z112e.html