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Energy
100

The force exerted by a machine is:

a) input force

b) output force

c) simple force

What is output force (b)

100

Give an example of an object with elastic potential energy? HINT: think experiment

Rubber band

100

Which of the following is a unit of work?

a) watt

b) joule

c) newton

What is a joule

200

The distance the output force is exerted through, or how far the load moves is called

b) output pathway

c) output distance

What is output distance (c)

200
Which is an example of electromagnetic energy?

a) a speeding car

b) a stretched bowstring

c) sunlight

What is sunlight (c)

200

Power is equal to work divided by which of the following variables?

a) time

b) distance

c) force

What is time (a)

300

The ability to do work is called:

a) energy

b) power

c) force

What is energy (a)

300
Friction causes kinetic energy to be converted into what?

a) potential energy

b) mechanical energy

c) thermal energy

What is thermal energy

300

If the speed of an object doubles, what happens to its kinetic energy?

b) KE doubles

c) KE is halved

400

The energy of an object due to its motion

What is kinetic energy

400

What is energy stored in the bonds between atoms and molecules called?

a) kinetic energy

b) mechanical energy

c) chemical energy

What is chemical energy

400

What other type of simple machine can be a screw be considered a type of?

a) lever

b) inclined plane

c) wedge

What is an inclined plane (b)

500

Energy that is stored as a result of position or shape

What is potential energy

500

What is work?

a) the product of force and distance

b) the sum of power and force

c) the product of speed and force

What is the product of force and distance (a)

500

Mechanical energy is:

a) the sum of an object's kinetic and potential energy

b) the sum of motion and force

c) the sum of power and force

What is the sum of an object's kinetic and potential energy (a)

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