Engery stores

Question 1

How is energy transferred?

Answer 1

Engery is transfered mechanically (by a force doing work) electrically( work done by moving charges )
by heating or by radiation

Question 2

Kinetic energy (Ke)

Answer 2

Movement - energy stored in a moving object

Question 3

Chemical

Answer 3

Reactions - when you mix 2 substances together and they react in a certain way

Question 4

Internal

Answer 4

Heat- something that is heated/ such as the sun

Question 5

Gravitational potential ( G.P.E)

Answer 5

When something is lifted of the ground e.g aeroplane

Question 6

Magnetic

Answer 6

Attraction/ repulsion - when magnetic pieces repel or attract each other

Question 7

Electro static

Answer 7

Electricity

Question 8

Elastic potential (E.P.E)

Answer 8

Stretch/ sqaush - e.g when you stretch out an elastic band and it comes back.

Question 9

Nuclear energy

Answer 9

The energy inside the nucleus of an atom

Question 10

Equation for G.P.E

Answer 10

M x g x h

Mass x gravity x change in height

Question 11

Equation for E.P.E

Answer 11

1/2 x k x e squared

1/2 x spring constant x extension squared

Question 12

Equation for K.E

Answer 12

1/2 x m x v squared

1/2 x mass x speed squared

Question 13

What is energy measured in ?????

Answer 13

Joules