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

Force is measure in

• Newtons• (kg)(m)/sec2

• Both A and B• None of the above

An example of a second class lever would be a

• Wheelbarrow• Elbow• Seesaw• None 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

A fulcrum is used in what type of simple machine

• Pulley• Inclined plane• Lever• Wheel and axle

The acceleration due to gravity would be greatest on

• Earth• Mercury• Saturn• Mars

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

Greenhouse gases include

• Carbon monoxide• Carbon dioxide• Nitrogen oxides• 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

The amount of work is measured in

• Joules• N-m• Both A and B• None of the above

Power can be described by

• Watts• Joules divided by time• N-m/sec• 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

Fossil fuels include

• Natural gas• Coal• Gasoline• 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

What is the velocity of an object with an acceleration of 100 m/sec2 after 3 seconds?

• 100 m/sec• 150 m/sec• 200 m/sec• 300 m/sec