STORED ENERGY

Question 1

What is energy?

Answer 1

• The ability of an object to do work
• When work is done BY an object, energy is transferred FROM the object
• When work is done ON an object, energy is transferred TO the object

Question 2

What is the amount of work done equal to?

Answer 2

Energy transferred

Question 3

What is work done measured in?

Answer 3

Joules (J)

1KJ = 1,000J
1MJ = 1,000,000J

Question 4

What is the Principle of Conservation of Energy?

Answer 4

The total amount of energy in a closed system (constant)

Question 5

What is a Kinetic energy store?

Answer 5

Energy possessed by moving objects

Question 6

What is a Chemical energy store?

Answer 6

Energy stores in bonds between atoms (eg. fuel, batteries)

Question 7

What is a Thermal energy store?

Answer 7

Energy of the random motion of particles in an object

Question 8

What is a Gravitational Potential energy store?

Answer 8

Energy an object has due to its position in a gravitational field

Question 9

What is a Magnetic energy store?

Answer 9

Energy an object has due to its position in a negative field

Question 10

What is an Electro Static energy store?

Answer 10

Energy an object has due to its position in an electric field

Question 11

What is an Elastic Potential energy store?

Answer 11

Energy stored in an object when it’s shape is changed

Question 12

What is a Nuclear energy store?

Answer 12

Energy stored between particles in the nucleus of atoms