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GCSE Physics*** > Momentum > Flashcards

Flashcards in Momentum Deck (14):
1

What is momentum ?

It is the tendency of a body to continue to move in a straight line at constant speed

2

When is it easy to change the motion of an object ?

If it has a low momentum

3

Equation for momentum




Momentum = mass x velocity

4

What is the momentum of two objects travelling in the same direction

Their momentums are added together

5

What are the momentums of two objects travelling in opposite directions ?

Their momentums are subtracted from each other

6

What is always the same before and after the collision ?

Momentum is conserved, and then I mentioned before and after the collision is always the same

7

Equation for conservation of momentum




Momentum = (mass1 x velocity1) + (mass2 x velocity2)

8

What is an elastic collision ?

In which connected energy is conserved

9

What is an inelastic collision ?

In which some kinetic energy is transferred, usually as heat

10

What are opposite of collisions ?

Explosions

11

Equation for change in the momentum




Change in
Momentum = (mass - velocity at the end) - (mass - velocity at the beginning)

12

What is the equation linking Force, time, mass and velocity





Force x time = (mass - velocity at end) - (mass - velocity at beginning)

13

Equation linking force, time and change in the momentum


Force x time = change in momentum

14

What is Newton's third law ?

For every force that acts, there is an equal size reaction force, of the same type, the acting opposite direction