Term 3

Question 1

How many J are in 1KJ?

Answer 1

1000J

Question 2

What is Kinetic Energy?

Answer 2

The energy an object possesses when it is in motion

Question 3

If a car has 5000J of kinetic energy and a marble has 4J of kinetic energy, which object has more energy?

Answer 3

The Car

Question 4

When you read a question asking you to calculate something, what is the first thing you need to do?

Answer 4

Highlight

Question 5

How does light travel

Answer 5

Light travels through waves

Question 6

What are the three methods of heat transfer?

Answer 6

1. Conduction
2. Convection
3. Radiation

Question 7

How does sound travel?

Answer 7

Through the vibrations of particles

Question 8

Name 3 examples of sound energy?

Answer 8

1. yelling
2. Car horn
3. birds teeting

Question 9

Name 3 examples of light energy?

Answer 9

1. sunlight
2. light bulb
3. torch

Question 10

Define the law of conservation of energy?

Answer 10

Energy can not be created or destroyed

Question 11

define energy transfer

Answer 11

The same type of energy is moved from one object to another

Question 12

Give an example of energy transfer using an energy flow diagram

Answer 12

Go draw it RIGHT NOW!

Question 13

Define energy transformation

Answer 13

When one type of energy changes into another type of energy

Question 14

Provide an example of an energy transformation

Answer 14

When you play softball in HPE, the kinetic energy in the bat when you swing it, is transferred to the ball, making the ball move

Question 15

Define gravitational potential energy

Answer 15

The energy an object possesses due to its height above the ground

Question 16

Which cyclist has more Gravitational potential energy and which has more Kinetic energy? One at the top of a hill or one at the bottom of a hill?

Answer 16

The cyclist at the top of the hill will have more GPE.
The cyclist at the bottom of the hill will have more Kinetic energy.

Question 17

Define Energy

Answer 17

The ability to do work

Question 18

How many MJ are in 5KJ’s?

Answer 18

MJ -> KJ = divide 1000
5KJ = 0.005MJ

Question 19

What are the three types of potential energy?

Answer 19

Chemical
Gravitational
Elastic

Question 20

What is the main energy that comes from food?

Answer 20

Chemical

Question 21

The main energy a toaster uses is electrical to produce heat energy. What other (wasted) forms of energy were released?

Answer 21

Sound and Light

Question 22

What is the main energy output of a person running?

Answer 22

Kinetic

Question 22

Is sound energy a type of kinetic or potential energy?

Answer 22

Kinetic

Question 23

Chemical potential -> sound energy

Is this an example of energy transfer or energy transformation

Answer 23

Energy transformation

Question 24

GPE <- sound Is this an accurate energy flow diagram? Explain why.

Answer 24

No, the arrow should be going the other way