Chapter 12 - Energy Flashcards

1
Q

What is potential energy?

A

Stored energy that may not cause changes now, but could in the future.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is electromagnetic energy?

A

A combination of electrical and magnetic energy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is kinetic energy?

A

Energy due to motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is chemical energy?

A

The energy of electrons that form bonds between atoms in molecules.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is energy?

A

The ability to do work or cause change.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is vibration?

A

The back and forth motion of an object.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is reflection?

A

When light bounces off an object.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is refraction?

A

The bending of light.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is translucent?

A

Let’s some light pass through, but not all.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is transparent?

A

Let’s nearly all light pass through.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is opaque?

A

Does not let any light through.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is mechanical energy?

A

Potential and kinetic energy combined.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does the law of conservation of energy state?

A

Energy cannot be created or destroyed. It can only change form or be transferred.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name and describe 2 types of potential energy.

A

Gravitational - energy depends on objects position relative to earth.

Elastic - energy present when things are bent or stretched.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the relationship between potential and kinetic energy?

A

It’s an inverse relationship. They can both be present in one object at the same time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What 2 things determine the amount of kinetic energy an object has?

A

Speed and mass

17
Q

Which has more kinetic energy, a beach ball or basketball?

A

A basketball because it has more mass.

18
Q

What energy transformation occurs when a toaster toasts a piece of bread?

A

Electric to thermal

19
Q

What energy transformation occurs when the buzzer on your alarm goes off?

A

Vibration creating sound waves.

20
Q

What kind of electric transformation occurs when the sun shines on the earth?

A

Nuclear energy to electromagnetic energy.

21
Q

What kind of energy transformation occurs when plants photo Synthesize?

A

Chemical energy

22
Q

What kind energy transformation occurs when a campfire burns?

A

Chemical to thermal

23
Q

Why can’t sound travel through space?

A

No molecules or particles to move.

24
Q

What are individual parts of white light?

A

All colors of visible light are mixed to form white light….red, orange, yellow, green, blue, indigo, violet.

25
Compare and contrast pitch and volume.
Volume is the amount of energy in a wave, pitch is the number of compressions.
26
On an energy spectrum, what is the order of energy from least to greatest?
Gamma rays, X-rays, ultra violet rays, microwaves, radio waves, visible light
27
What are the two components of a wave?
Wavelength and amplitude