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BellringerBellringerWhich color of light bends the least and why:
red, green, blueWhich color of light bends the least and why:
red, green, blue
1.A wavelength of 2mm and a frequency of 3Hz has a speed
of_____.
1.A wavelength of 2mm and a frequency of 3Hz has a speed
of_____.
•6 mm/s
2. ___ reflection occurs when parallel rays of light hit a
smooth surface?
2. ___ reflection occurs when parallel rays of light hit a
smooth surface?
D. Regular
C. Incidental
B. Irregular
A. Diffuse
3.If a sound source is moving away from you, you will hear a
_____.
3.If a sound source is moving away from you, you will hear a
_____.
D. higher pitch
C. lower pitch
B. lower amplitude
A. higher freqeuncy
4.In _____ waves, the particles of the medium move at right angles to the
direction in which the wave is traveling.
4.In _____ waves, the particles of the medium move at right angles to the
direction in which the wave is traveling.
D. sound
C. longitudinal
B. transverse
A. compressional
5.Microwave radiation has a higher frequency than
_______.
5.Microwave radiation has a higher frequency than
_______.
D. ultraviolet
C. radio
B. gamma
A. visible
6.An opaque object has a particular color because it reflects some
wavelengths of light and _______ the rest.
6.An opaque object has a particular color because it reflects some
wavelengths of light and _______ the rest.
D. Echoes
C. Transmits
B. Reflects
A. Absorbs
7.As the frequency of a wave traveling at constant speed
increases, its _____ decreases.
7.As the frequency of a wave traveling at constant speed
increases, its _____ decreases.
D. speed
C. amplitude
B. wavelength
A. energy
8._____ mirrors are used on the passenger sides of vehicles to
allow for a wider range of view.
8._____ mirrors are used on the passenger sides of vehicles to
allow for a wider range of view.
D. Fun-house
C. Convex
B. Plane
A. Concave
9.Secondary waves CANNOT travel through
_____.
9.Secondary waves CANNOT travel through
_____.
D. plasmas
C. gases
B. liquids
A. solids
10.Place the colors of light in order from SHORTEST
wavelength to LONGEST wavelength.
10.Place the colors of light in order from SHORTEST
wavelength to LONGEST wavelength.
Violet
Indigo
Blue
Green
Yellow
Orange
Red
11.Sound is a disturbance that travels through a medium as
a(n) _____ wave.
11.Sound is a disturbance that travels through a medium as
a(n) _____ wave.
D. longitudinal
C. transverse
B. electromagnetic
A. polarized
12.Waves combine to make a wave with larger amplitude in a
process called _____ interference.
12.Waves combine to make a wave with larger amplitude in a
process called _____ interference.
D. constructive
C. mirage
B. destructive
A. refraction
13.You have recently shown an interest in the inner workings of an electric motor. You wonder exactly how it can go faster when you press the accelerator with your
foot. You plan to design an experiment to prove that pressing the accelerator increases the voltage to the electric motor, therefore making it rotate faster. You
devise a hypothesis that states that if voltage is increased to the electric motor, then the motor will increase its revolutions per minute. Which 2 of the
following factors, in this scenario, would be classified as the controlled variables?
13.You have recently shown an interest in the inner workings of an electric motor. You wonder exactly how it can go faster when you press the accelerator with your
foot. You plan to design an experiment to prove that pressing the accelerator increases the voltage to the electric motor, therefore making it rotate faster. You
devise a hypothesis that states that if voltage is increased to the electric motor, then the motor will increase its revolutions per minute. Which 2 of the
following factors, in this scenario, would be classified as the controlled variables?
the motor
the rpms
the voltage
the wires
14.Because the light rays never meet, a concave lens can produce only a(n) _______
image.
14.Because the light rays never meet, a concave lens can produce only a(n) _______
image.
D. virtual
C. holographic
B. real
A. black & white
15.List the waves of the Electromagnetic Spectrum from LOWEST frequency to HIGHEST
frequency.
15.List the waves of the Electromagnetic Spectrum from LOWEST frequency to HIGHEST
frequency.
Radio waves
Microwaves
Infrared
Visible light
Ultraviolet
X-rays
Gamma rays
16.At room temperature, the speed of sound in air is
approximately how many m/s?
16.At room temperature, the speed of sound in air is
approximately how many m/s?
D. 300,000 m/s
C. 343 m/s
B. 343 km/s
A. 300,000 km/s
17. The buildup of charges on an object is known as
_____?
17. The buildup of charges on an object is known as
_____?
D. static electricity
C. negative charge
B. static discharge
A. positive charge
18. A virtual image always appears
_______.
18. A virtual image always appears
_______.
D. upside-down
C. larger
B. upright
A. smaller
19.If something vibrates one thousand times per second, it has a frequency of 1 _______.
19.If something vibrates one thousand times per second, it has a frequency of 1 _______.
D. MHz
C. kHz
B. Hz
A. GHz
20.The colors of visible light with _____ bend less than others when passing through a prism.
20.The colors of visible light with _____ bend less than others when passing through a prism.
D. shorter wavelengths
C. longer wavelengths
B. higher frequencies
A. higher amplitudes
21. Ultraviolet rays help your body to produce
_______..
21. Ultraviolet rays help your body to produce
_______..
D. calcium
C. hormones
B. vitamin D
A. hair
22.Name the type of wave labeled C.
22.Name the type of wave labeled C.
D. Infrared
A. Ultraviolet
B. Visible
C. X-ray
23.In which medium listed in the table does sound travel
slowest?
23.In which medium listed in the table does sound travel
slowest?
C. Air @ 20°C
C. Hardwood
B. Air @ 0°C
A. Brick
24.The speed of a wave on a guitar string is 220m/s and the frequency is 110Hz. What is the wavelength of the
wave?
24.The speed of a wave on a guitar string is 220m/s and the frequency is 110Hz. What is the wavelength of the
wave?
2 m/s
25.Because of _______, glass prisms separate white light into the visible spectrum of colors.
25.Because of _______, glass prisms separate white light into the visible spectrum of colors.
D. diffusion
C. refraction
B. diffraction
A. reflection
26.In a longitudinal wave moving along a spring, areas where the
coils are farthest apart are called _____.
26.In a longitudinal wave moving along a spring, areas where the
coils are farthest apart are called _____.
D. rarefactions
C. crests
B. compressions
A. troughs
27. Match each unit on the left with what it measures on the
right.
27. Match each unit on the left with what it measures on the
right.
V
H
Ω
A
kWh
W
Energy
Power
Resistance
Voltage
Current
Time
28.A wave bending as it passes a point of land is an example of
_____.
28.A wave bending as it passes a point of land is an example of
_____.
D. diffraction
C. refraction
B. reflection
A. transmission
29. The unit associated with _____
is the hertz.
29. The unit associated with _____
is the hertz.
D. Wavelength
C. amplitude
B. frequency
A. speed
30.Suppose that a reflected light wave has an angle of reflection of 20°. What must be the angle be between the reflecting surface
and the original beam of light?
30.Suppose that a reflected light wave has an angle of reflection of 20°. What must be the angle be between the reflecting surface
and the original beam of light?
D. 90°
C. 70°
B. 50°
A. 30°
31.A tomato will look _______ under blue
light?
31.A tomato will look _______ under blue
light?
D. black
C. red
B. blue
A. white
32. Of the following, which is the correct speed of
light?
32. Of the following, which is the correct speed of
light?
D. 3 x 105 km/s
C. 343 m/s
B. 300,000,000 km/s
A. 3 x 108 km/s
33.Which of the following would be classified as quantitative
data?
33.Which of the following would be classified as quantitative
data?
2.44 GHz
hot
300,000 km/s
blue
transparent
22 nm