Energy

Question 1

What energy conversion is about to take place in this picture.

Answer 1

Elastic Energy

to

Translational Kinetic Energy

Question 3

Defined as “the ability to cause a change.”

Answer 3

Energy

Question 4

Stored Energy is often called

Answer 4

Potential Energy

Question 5

What energy conversion took place before the apple hit Newton in the head?

Answer 5

Gravitational Potential Energy

to

Translational Kinetic Energy

Question 6

What energy conversion takes place in a hydroelectric dam?

Answer 6

Gravitational Potential Energy in the water held behind the dam is converted to Electrical Energy.

Question 7

What type of energy is contained in the food you eat?

Answer 7

Chemical Potential Energy

Question 8

What energy storage mechanisim is present here?

Answer 8

Rotational KInetic Energy

Question 9

What energy conversion is taking place in the plants in the greenhouse?

Answer 9

Radiant Energy

to

Chemical Potential Energy

(This is what photosynthesis does)

Question 10

What energy storage mechanism is pictured here?

Answer 10

Gravitational Potential Energy

Question 11

In science, work is often defined as

Answer 11

The change in energy caused by a force.

Work = Force x Distance

Question 18

The Law of Conservation of Energy states that:

Answer 18

Energy cannot be created or destroyed.

(It can, however, be converted in to different types of energy)

Question 19

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Question 20

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Question 21

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Question 22

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Question 23

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Question 24

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Question 25

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Question 26

The percent of “work” put into a machine that is converted into useful “work” output.

Answer 26

Efficiency

Question 27

A device, such as a lever or pulley, that increases or decreases the force (or simply changes the direction of the force).

Answer 27

Machine

Question 28

How much work is done divided by the time it takes to do that work is called….

Answer 28

Power

Question 29

Answer 29

Question 30

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Question 31

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Question 32

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Question 33

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Question 34

The unit of power.

(It is a joule/second)

Answer 34

Watt

Question 35

The product of the force applied to an object and the distance the object moves.

(This assumes the force and movement are both in the same direction)

Answer 35

Work

Question 36

A push or a pull is a ____________.

Answer 36

Force

Question 37

How quickly work gets done.

Answer 37

Power

Question 45

GPE

stands for

Answer 45

Gravitational Potential Energy

Question 46

TKE

stands for

Answer 46

Translational Kinetic Energy

(energy of an object moving from one place to another)

Question 47

RKE

stands for

Answer 47

Rotational Kinetic Energy

(The energy of a spinning object)