Physics momentum

state the formula linking momentum, mass and velocity

momentum(kg m/s) = mass(kg) velocity(m/s)

State the principle of conservation

The total momentum before a collision = the total momentum after a collision

State the formula for the change of momentum

Change of momentum = Final momentum - Initial momentum.

formula for Force?

Force = Change in momentum Over Time

Newton’s third law

Whenever two objects interact, the forces they exert on each other are equal in magnitude and opposite in direction

newton’s third law in collisions

• When two objects collide, both objects will react, generally causing one object to speed up (gain momentum) and the other object to slow down (lose momentum)

name 3 safety features in vehicles

• Crumple zones

  They are designed into the exterior of a building and are located at the front and back. they are designed to crush or crumple in a controlled way

• Seat belts

  These are designed to stop a passenger from colliding with the interior of a vehicle by keeping them fixed to their seat

• airbags

  They are deployed during a collision to act as a soft cushion and soften the impact

These absorb the energy from the impact help reduce the risk of injury