Momentum And Impulse

Front 1

The Principle of the Conservation of Momentum states that...

Back 1

if objects collide, the total momentum before the collision is the same as the total momentum after the collision (provided that no external forces - for example, friction - act on the system).

Front 2

Principle of Conservation of Energy

Back 2

The energy is also conserved in any collision

Front 3

Newton's First Law

Back 3

That a force is necessary to change the state of rest or of uniform motion in a straight line of a body.

Front 4

Linear momentum

Back 4

The mass of an object multiplied by its velocity.
It is a vector
p = mv
unit is Ns

Front 5

Kinetic energy

Back 5

It is the force x distance
it is 1/2 mv[2]

Front 6

Change in Kinetic energy

Change in momentum

Back 6

It is 1/2mv[2] - 1/2mu[2] unit = J
It is mv - mu unit = Ns

Front 7

Newton's Second Law states;

Back 7

The rate of change of the momentum of an object is directly proportional to the resultant force acting upon it.

Front 8

One newton is...

Back 8

It is the force that gives a mass of one kilogram an acceleration of one metre per second each second.

Front 9

Equations of force

Back 9

F = ma or F = ^p/^t

Front 10

Mass is ...

Weight is ...

Back 10

Is the inertia of an object, how difficult it is to accelerate an object.
is the gravitational force the Earth exerts on an object.

Front 11

Newton's first Law states..

Back 11

When body A exerts a force on body B, then body B exerts on body A a force that is equal, opposite in direction and of the same type.

Front 12

Impulse is...

Back 12

It equals the change in the momentum of a body.
It is equal to the area beneath a force-time graph
^p= F^t

Front 13

A perfectly elastic collision..

An inelastic collision..

Back 13

It is a collision in which no momentum or kinetic energy is lost.
Momentum is conserved but kinetic energy is lost.