kinetic energy Flashcards
1
Q
define kinetic energy
A
the energy stored in moving objects
2
Q
kinetic energy equation with units
A
kinetic energy (j) = o.5 x m (kg) x v squared (m/s)
3
Q
describe the energy changes in a car
A
- chemical energy store in petrol
- a chemical reaction takes place in the engine
- some of the energy is converted to kinetic energy stores ( as the car moves)
