Work and Power Flashcards
1
Q
What is energy?
A
Energy is the ability to do work
2
Q
What is the equation for work done?
A
Work done (W) = force applied (F) x distance through which it is applied (d) J = N x m
3
Q
What is work done equal to?
A
To energy transferred
4
Q
How do you work out GPE?
A
mass x g x height
mgh
5
Q
How do you work out kinetic energy?
A
1/2 x mass x speed squared
1/2mvsquared
6
Q
What is power?
A
The rate of transfer of energy or the rate of doing work
7
Q
How do you work out power?
A
power = work done / time taken P= W/t
8
Q
How does the conservation of energy produce a link between GPE and KE and Work?
A
KE gained = GPE lost
