Physics (energy P1) Flashcards
1
Q
What is kinetic energy
A
Kinetic energy is the energy stored in moving objects
2
Q
Kinetic energy equation (joules)
A
0.5 x mass (kg) x velocity^2 (m/s)
3
Q
What does ‘ doing work’ mean?
A
Applying a force
4
Q
What is Elastic potential energy
A
The stretched spring is storing this energy and we are putting energy into stretch the spring
5
Q
What is an extension
A
When we apply force the spring will stretch and we call this extension
6
Q
What is the relationship between extension and force applied
A
The extension is directly proportional to the force applied BUT there is a limit of proportionality
7
Q
What is a store of Elastic potential energy
A
Stretched spring
8
Q
Elastic potential energy equation (joules)
A
0.5 x spring constant (N/m) x extension^2 (m)
