Science Ch. 3 Flashcards Preview

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Flashcards in Science Ch. 3 Deck (20)
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0
Q

True or False: The amount of kinetic energy a moving has increases as the mass of the object increases.

A

True

1
Q

True or False: The amount if chemical energy a moving object has depends on the object’s mass and speed

A

False. The amount of KINETIC ENERGY a moving object has is depends on the object’s mass and speed.

2
Q

True or False: Gravitational potential energy depends on the object’s mass and it’s height above the ground.

A

True

3
Q

True or False: The energy when an object is squeezed or stretched is called radiant energy.

A

False. The energy when an object is squeezed or stretched is called ELASTIC POTENTIAL ENERGY.

4
Q

True or False: The energy stored in fuel before it is burned is in the chemical bonds of the material.

A

True

5
Q

In order for thermal energy to be transferred, the objects must be at different ____________.

A

Temperatures

6
Q

All forms of _______ can cause something to change.

A

Energy

7
Q

When an opera singer can shatter glass using only her voice, the energy is transferred from the singer’s voice through _______ ______.

A

Sound waves

8
Q

Water, sound, and _____________ ________ can transfer energy.

A

Electromagnetic waves

9
Q

Burning wood converts __________ potential energy into thermal and ______ energy.

A

Chemical, light

10
Q

Wood is a fuel and when it is burned, most of the chemical energy is changes form and only a small part of the wood’s original chemical potential energy remains in ________.

A

Ashes

11
Q

When a moving automobile is stopped by the ________ of the applying its brakes, its kinetic energy is ultimately transformed into ______.

A

Friction, heat

12
Q

The transfer of thermal energy between particles in matter is called __________.

A

Conduction

13
Q

When heat in beach sand transfers to a person’s feet.

A

Conduction

14
Q

Best conductor of thermal energy.

A

Copper

15
Q

The transfer of heat through liquid or gas.

A

Convection

16
Q

The transfer of thermal energy by electromagnetic waves through matter or space.

A

Radiation

17
Q

Radiation is given off by what object?

A

The Sun

18
Q

The energy transferred during radiation is is carried by these.

A

Electromagnetic waves

19
Q

Is a cup of hot coco warmer at the top or warmer at the bottom?

A

The bottom is warmer because it isn’t touching the air and is closer to the heat source.