Apologia Physical Science 8th Grade Module 8

Work can be defined as a transfer of what?

• mass

• energy

• force

• motion

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What is the energy of motion called?

• kinetic energy

• potential energy

• thermal energy

• work

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What is the energy that is stored due to position or a shape called?

• kinetic energy

• potential energy

• thermal energy

• work

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Which one of the following is NOT associated with an objects gravitational potential energy?

• its mass

• its speed

• the acceleration due to gravity

• its height relative to a reference level

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Which of the following increases when an object becomes warmer?

• chemical energy

• elastic potential energy

• nuclear energy

• thermal energy

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What kind of energy is stored in gasoline?

• chemical energy

• elastic potential energy

• nuclear energy

• thermal energy

Which of the following statements is true according to the law of conservation of energy?

• Energy cannot be created

• Energy cannot be destroyed

• Energy can be converted from one form to another

• all of the above

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In which of the following is no work done?

• climbing stairs

• lifting a rock

• pushing a shopping cart

• work is done in all options

In which of the following is a force acting on an object doing no work?

• a machine is used to move the object

• the force is not in the direction of the objects motion

• the force is greater than the force of friction

• the object accelerates

What is a unit of work?

• joule

• newton/meter

• watt

• all of the above

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