Work and Power

Question 1

What is energy?

Answer 1

Energy is the ability to do work

Question 2

What is the equation for work done?

Answer 2

Work done (W) = force applied (F) x distance through which it is applied (d) 
J = N x m

Question 3

What is work done equal to?

Answer 3

To energy transferred

Question 4

How do you work out GPE?

Answer 4

mass x g x height

mgh

Question 5

How do you work out kinetic energy?

Answer 5

1/2 x mass x speed squared

1/2mvsquared

Question 6

What is power?

Answer 6

The rate of transfer of energy or the rate of doing work

Question 7

How do you work out power?

Answer 7

power = work done / time taken 
P= W/t

Question 8

How does the conservation of energy produce a link between GPE and KE and Work?

Answer 8

KE gained = GPE lost