p3.1 Flashcards
transferring energy (9 cards)
1
Q
what is energy
A
Energy is the ability to do work
2
Q
what is a machine
A
A machine is a device that can convert one type of energy to another.
This can be represented by a simple energy flow diagram.
3
Q
what does the conservation of energy state
A
The CONSERVATION OF ENERGY states that: energy cannot be created or destroyed; it can only be converted from one form to another (or stored).
4
Q
what equals power
A
work done ÷ time taken
5
Q
force x distance=?
A
Work done
6
Q
what is force measured in
A
newtons
7
Q
what is work measured in
A
joulesq
8
Q
what is work
A
the process of transferring energy
9
Q
what is power
A
the rate at which work is done
