Kinetic and gravitational potential energy Flashcards
1
Q
What is Gravitational potential energy?
A
The energy an object has due to its height from the ground
2
Q
What is the equation for calculating gravitational potential energy?
A
Ep = m x g x h
3
Q
What is kinetic energy?
A
The energy store of a moving object
4
Q
What is the equation of kinetic energy?
A
Ek = 1/2mv2
5
Q
Which energy store is empty when an object thrown upwards is as its maximum height?
A
Kinetic energy
6
Q
When an object falls to the ground, when will ALL the energy in the gravitational store be shifted to the kinetic store?
A
If there is a closed system with no external forces acting on the object
7
Q
What happens if the mass doubles?
A
The kinetic energy doubles
8
Q
What happens if velocity doubles?
A
Kinetic energy quadruples
