Kinetic And Potential Energy Stores Flashcards
1
Q
What is kinetic energy?
A
Anything that moves is using kinetic energy
2
Q
Formula for kinetic energy
A
2
E = 1/2mv
k Mass(kg)
(Speed)
Kinetic (M/S)
Energy (j)
3
Q
What does lifting an object in a gravitational field require ?
A
Lifting an object in a gravitational field requires work.
4
Q
Equation for the change in gravitational energy
A
E = MGH (Height M)
P (Gravitational field strength N/kg)
(Mass kg)
5
Q
When something falls, what is the energy transferred into ?
A
When something falls, energy from it’s gravitational potential energy store is transferred to its kinetic energy store
6
Q
What can stretching or squashing an object do to the energy ?
A
Stretching and squashing of an object can transfer energy to its elastic potential energy store
7
Q
Equation for elastic potential energy store
A
2
E=1/2ke
