4- Momentum, energy, work and power Flashcards
1
Q
Thinking distance
A
Distance travelled by the car as the driver reacts to apply the brakes
2
Q
Braking distance
A
Distance travelled by the car while the brakes are applied before the car comes to a stop
3
Q
Momentum
A
A quantity calculated by multiplying the mass of an object by its velocity
4
Q
Conservation of momentum
A
Total momentum before collision = total momentum after collision
5
Q
Stopping distance
A
Thinking distance + braking distance
6
Q
Work done
A
The product of force and distance moved in the direction of the force
7
Q
Power
A
The rate of doing work
8
Q
Kinetic energy
A
Movement energy
