Energy

Question 1

Define ‘Energy’ and what it does

Answer 1

‘Energy’ is the ability to do work or cause change. It includes moving things, joining things together, heating things up, cooling things down, make noise, make light, and power.

Question 2

What unit of measurement is energy measured in?

Answer 2

Joule (J)

Question 3

What are the 2 types of energy

Answer 3

Potential energy and Kinetic energy

Question 4

Define ‘Potential Energy’ together with the forms of potential energy.

Answer 4

‘Potential Energy’ is stored energy that is ready to go. There are 3 forms of potential energy such as gravitational potential energy, chemical potential energy, and elastic potential energy.

Question 5

Define ‘Elastic Potential Energy’ and what form of energy is it in relation to

Answer 5

‘Elastic Potential Energy’ involves compression or expansion of elastic objects such as hair ties. The energy is in relation to potential energy.

Question 6

Define ‘Chemical Potential Energy’ and what form of energy it is in relation to

Answer 6

‘Chemical Potential Energy’ is energy stored within chemical bonds such as batteries. It is in relation to potential energy.

Question 7

Define ‘Gravitational Potential Energy’ and what form it is in relation to

Answer 7

‘Gravitational Potential Energy’ is potential energy due to an objects position such as a ball being held waiting to be dropped. It is in relation to potential energy.

Question 8

Define ‘Kinetic Energy’ and the 5 forms of kinetic energy.

Answer 8

‘Kinetic Energy’ is an objects energy in motion. There are 5 forms of kinetic energy:
1. Heat - microwaves
2. Mechanical (movement) - cars
3. Light (radiant) - light bulbs
4. Sound - music speakers
5. Electrical - batteries

Question 9

Describe the ‘Law of Conservation of Energy’

Answer 9

“Energy can neither be created nor destroyed. Energy can only be transferred.”

Question 10

Describe what a ‘Pendelum’ is

Answer 10

‘Pendelum’ is a device that involves mass heading upwards and gains gravitational potential energy.

Question 11

Define ‘Energy TRANSFER’

Answer 11

Energy TRANSFER is the passing of kinetic energy from a moving object to a motionless object.

Question 12

Define ‘Energy TRANSFORMATION’

Answer 12

The changing of energy from one form of energy to another form of energy.