Energy transfer Flashcards
1
Q
What is enegy measured in?
A
Joules (J)
2
Q
how many KJ is 1500 J?
A
1.5 KG
3
Q
What are the different forms of energy?
A
- Chemical potential energy
- kinetic energy
- gravitational potential energy
- chemical potential energy
- elastic potential energy
- electrical energy
- nucleur potential energy
- thermal energy
- sound energy
4
Q
what is the equation for work done?
A
work done = force x distance moved in the direction of the force (J)
5
Q
What is the equation for efficiency?
A
efficiency= useful work done/ energy input (/ = divide)
6
Q
What is the equation for power?
A
power = energy transferred/ time
7
Q
What is the equation for GPE?
A
GPE=MGH
8
Q
What is the equation for weight?
A
w=mg
9
Q
What is the equation for Kinetic energy?
A
KE=1/2 mv squared
