Momentum and force

This resource should hopefully cover all the basic information and will include all the equations you need to know for this topic. Good luck :) 

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Momentum (Ns)
mass (kg) x velocity (m/s)
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Newtons second law of motion
The rate of change of a bodies momentum is proportional to the resultant force acting on it, and the direction of the change is that of the resultant force.
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Newtons First law of motion
A body at rest remains at rest, and a moving body continues moving in a straight line at constant speed, unless acted upon by a resultant external force.
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Newtons Third law of motion
When a body A exerts a force on a body B, B exerts an equal and opposite force on A.
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The law of conservation of energy
The vector sum of the momenta of the bodies in a system is constant, provided there is no resultant force from outside of the system.
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Define an elastic collision
An elastic collision is when no kinetic energy is lost or gained.
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Define an inelastic collision
This is when kinetic energy is lost in a collision.
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Kinetic energy
1/2mv^2
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Momentum of a photon
Planks constant (h) / Photon wavelength
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To calculate the mean force on a body when photons are striking we use?
Photon momentum absorbed (number of photons absorbed x momentum per photon) / time taken
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Energy of a photon
Planks constant (h) x speed of light (3x10^8) / photon wavelength
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Other cards in this set

Card 2

Front

Newtons second law of motion

Back

The rate of change of a bodies momentum is proportional to the resultant force acting on it, and the direction of the change is that of the resultant force.

Card 3

Front

Newtons First law of motion

Back

Preview of the front of card 3

Card 4

Front

Newtons Third law of motion

Back

Preview of the front of card 4

Card 5

Front

The law of conservation of energy

Back

Preview of the front of card 5
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