Work and Power Flashcards Preview

Z Physics GCSE > Work and Power > Flashcards

Flashcards in Work and Power Deck (8)
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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