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Science > Chapter 13 test cards > Flashcards

Chapter 13 test cards Flashcards

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1
Q

What is energy?

A

The ability to do work or cause change

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2
Q

What is power?

A

The rate at which energy is transferred

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3
Q

What is work?

A

The transfer of energy

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4
Q

Energy transferred/Time=

A

Power

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5
Q

What is kinetic energy?

A

The energy of motion

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6
Q

When K.E. increases, what does velocity do?

A

Increase

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7
Q

The more mass a moving object has, the more ….

A

K.E. it has

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8
Q

Energy that is stored and held in readiness is called what?

A

Potential Energy

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9
Q

What does gravitational potential energy depend on?

A

Height

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10
Q

Potential energy associated with objects that can be strecthed or compressed is called what?

A

Elastic Potential Energy

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11
Q

Potential energy stored in chemical bonds that hold chemical compounds together is called what?

A

Chemical energy

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12
Q

How does electromagnetic energy travel?

A

In waves

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13
Q

Why do the waves have kinetic energy?

A

Because they move

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14
Q

What are the two properties electromagnetic energy waves have?

A

Electrical properties and Magnetic properties

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15
Q

When you stretch a rubber band what kind of energy are you giving it?

A

Elastic potential energy

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16
Q

When you release a stretched rubber band and it flies across the room, what happened?

A

An energy transformation

17
Q

What does the law of conservation of energy state?

A

When one form of energy is transformed to another, no energy is destroyed in the process

18
Q

Energy cannot be what?

A

Created or destroyed

19
Q

What is combustion?

A

The process of burning fossil fuels

20
Q

When combustion takes place, what energy transformation takes place?

A

Potential energy into thermal energy

21
Q

What is the formula for Mechanical energy?

A

Potential energy + Kinetic energy

22
Q

What are the two basic forms of energy?

A

P.E. and K.E.

Science (14 decks)

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