Work,energy and momentum.

Units for momentum..

Momentum is CONSERVED whenever objects..

Energy transferred is the same as..

Units for work done..

The law of the conservation of momentum is the idea that..

Side impact bars(in cars) and crumple zones 'give way' in an impact so increasing the...

Like velocity,momentum has both..

We can use the conservation of momentum to find the..

In calculations,ONE DIRECTION must be defines as positive so momentum in the other direction must be..

The gravitational potential energy of an object depends on..

Firing a bullet is an example of an explosion.The bulet moves with a momentum in ONE DIRECTION and the gun 'recoils' with..

When vehicles collide,the force of the impact depends on mass,

When a force acts on an object that us able to move,or it is moving,its momentum..

For a change in momentum,the longer the time taken for the change,

During a collision,the momentum of an object often becomes..

If the IMPACT TIME is short,

Work done to overcome friction is mainly transferred into..

CRUMPLE ZONES in cars are designed to fold in a collision.This increases the impact time and so...

Seat belts and air bags spread the force across the chest and they also increase the..

Gravitational potential energy is energy stored in an object because..

If an object is moved vertically upwards it gains gravitational potential energy equal to..

Power is the rate of..

All moving objects have..

The greater the mass and the faster the speed of an object,

All moving objects have..