P1.4 Gravitational Potential Energy Stores Flashcards
1
Q
What does the amount of work done when an object moves up or down depend on?
A
- How far it is moved vertically
- Its weight
2
Q
How do you calculate the change in an object’s gravitational potential energy store when moved up or down?
A
Change in an object’s gravitational potential energy store = weight (N) x change of height (m)
3
Q
How do you calculate the weight of an object in newtons?
A
Mass x gravitational field strength
4
Q
What is the Greek letter delta used for in physics?
A
To represent the phrase ‘change in’ or ‘difference in’
5
Q
What is the formula used to calculate the amount of energy in an object’s kinetic energy store?
A
Kinetic energy = 1/2 x mass x speed squared
6
Q
What is the formula to calculate elastic potential energy?
A
Elastic potential energy = 1/2 x spring constant x extension squared
