Energy and Momentum Flashcards
When an object is lifted higher which form of energy does it gain?
Gravitational Potential Energy
When an object moves faster which form of energy does it gain?
Kinetic Energy
Which 2 things do you need to know to calculate work done?
Force and Distance
Which equation from the data sheet would you use to calculate power?
Power = Word Done / Time
How much momentum does an object have if it is not moving.
Zero.
Which 2 things to you need to know to calculate an objects momentum?
Mass and Velocity
Before and after a collision the total amount of momentum is?
equal.
Which factors affect the amount of gravitational potential energy an object has?
Mass, height and strength of gravity
A cars brakes turn kinetic energy into?.
Heat (and sound)
The correct unit for work done is?.
Joule
Which type of energy does a falling object lose?
Gravitational Potential Energy
Which type of enery does a falling object gain?
Kinetic Energy
2 cars have equal mass but one has a greater momentum, what can you say about the velocity of the two cars?
One has a bigger velocity
