Upload
mackensie-marks
View
42
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Name the three basic cloud types. Stratus, cumulonimbus, and cirrus Nimbus, cirrus, stratus Stratus, cirrus, and cumulus Stratocirrus, cirrus, and cumulus. A force can be defined as a. An attraction or repulsion A push or a pull Interaction between two objects Involves momentum. - PowerPoint PPT Presentation
Citation preview
Name the three basic cloud types
• Stratus, cumulonimbus, and cirrus• Nimbus, cirrus, stratus• Stratus, cirrus, and cumulus• Stratocirrus, cirrus, and cumulus
A force can be defined as a
• An attraction or repulsion• A push or a pull• Interaction between two objects• Involves momentum
Momentum does not require for the object to have
• Mass• Velocity• Movement in a specific direction• Acceleration
For an object to have inertia, the object can
• Be at rest• Move at a constant momentum• Have no interaction with external
forces• None of the above
Air quality is influenced by
• The amount of particulates in the air• the amount of ozone in the air• The amount of water in the air• All of the above
What type of instrument measures the relative humidity
of the air
• Hydrometer• Barometer• Anemometer• Hygrometer
Newton’s second law of motion involves
• The relationship between mass and acceleration
• the equivalent but opposite forces of action and reaction
• How inertia keeps a body in motion• All of the above
The mechanical advantage describes
• The efficiency of the machine• How much force the machine can
handle• What force is needed to operate the
machine• How many parts are involved with
the machine
Newton’s third law of motion applied to a airplane in the air
would involve the following forces
• Thrust and drag• Lift and gravity• Both A and B• None of the above
The chance for severe weather increases with
• A cold front and a low pressure system• A warm front and a high pressure system• A cold front and a high pressure system• All of the above situations would increase
the chance for severe weather
The mechanical advantage of an inclined plane is calculated
by• The base divided by the height• The base divided by the thickness• The slope divided by the height• The slope divided by the base
The weight of an object is calculated by
• Multiplying the object’s mass and the size of the object
• Multiplying the object’s mass by the acceleration due to gravity
• Multiplying the object’s density by the object’s mass
• Multiplying the object’s volume by the acceleration due to gravity
You can determine the velocity of an object by
• Dividing the distance traveled by the time traveled
• Dividing the acceleration of the object by the time traveled
• Multiplying the speed of the object by the time traveled
• Determining the speed and direction of the object
Inertia only occurs when
• The object is at rest• The object is at a constant
momentum• Both A and B• None of the above
What would have to occur for the production of large hail
• A very strong low pressure system• The presence of a tornado in the
vacinity• A highly developed storm convection
cell• All of the above
Climate change could be most affected by
• Presence of carbon dioxide in the atmosphere
• The amount of ozone in the atmosphere
• The amount of precipitation over time
• All of the above
Weight and mass would be equivalent if
• There was no acceleration due to gravity
• There was no significant gravitational force
• The acceleration due to gravity was 1 m/sec2
• None of the above
Gravitational force increases as
• The two objects get closer together• The two objects are similar in mass• The two objects are very different in
mass• The two objects get farther apart
Centripetal force of an object is directed
• Toward the center• Away from the center• At a right angle from the radius• None of the above
Torque increases as
• The force moves away from the point of rotation
• The force moves closer to the point of rotation
• The length of the lever increases• The force occurs directly at the point
of rotation
Greenhouse gases can be reduced by
• Reducing the amount of automobile exhaust
• Using more solar energy to heat homes
• Reducing the use of plastic containers
• All of the above
Satellites are useful for
• Determining oceanic surface temperatures
• Determining development of storm systems
• Determining the presence of air particulates
• All of the above
The mechanical advantage of a wheel and axle is calculated by• Dividing the radius of the axle by the
radius of the wheel• Dividing the radius of the wheel by
the thickness of the wheel• Dividing the radius of the wheel by
the radius of the axle• Dividing the radius of the wheel by
the length of the axle
The distance a projectile travels is influenced by
• The initial velocity of the projectile• The angle at which the projectile is
launched• The height at which the projectile is
launched• All of the above
Acceleration can be measured by
• Determining the slope of a line from a graph of velocity versus time
• Determination of acceleration by knowing the weight and mass of an object
• Dividing the change of velocity over a known amount of time
• All of the above
Centrifugal force occurs
• Directly away from the center• Perpendicular to the radius• Both A and B• None of the above
On a seesaw a force of 100 N at 1 m from the fulcrum can be balanced by a 25 N force at what
distance from the fulcrum on the other side
• 2 m• 4 m• 1 m• 8 m
If the gravitational force of the moon is approximately one sixth of the earth’s gravitational force, an object that weighs 100 lbs on earth would weigh ____ on the
moon
• 160 pounds• 33.4 pounds• 16.7 pounds• 100 pounds
The mechanical advantage of a wedge increases as
• The slope of the wedge increases• The thickness of the wedge
decreases• The ratio of the slope to the
thickness increases• All of the above
A change in the momentum of an object occurs
• When an external force is applied on the system
• The mass of the object changes• There is a change in direction the
object is travelling• All of the above
The change of momentum can be calculated by
• Multiplying the force applied by the time the force is applied
• Multiplying the mass of the object by the velocity of the object
• Both A and B• None of the above
The layer of the atmosphere where weather occurs is the
• Stratosphere• Mesosphere• Thermosphere• troposphere
What is the slope of a graph of velocity versus time of an
object with an acceleration of 50 m/sec2
• 100 m/sec2
• 50 m/sec2
• 100 m/sec• 50 m/sec