The Newtonian World

All the main definitions for The Newtonian World Topic

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  • Created by: Douglas
  • Created on: 21-03-15 13:02
Newton's First Law
An object will remain at rest or keep travelling at constant velocity unless it is acted one by an external force.
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Newton's Second Law
The force exerted on an object is directly proportional to the rate of change of momentum.
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Momentum
Momentum = mass x velocity
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Newton's Third Law
If body A exert a force on body B, than body B will exert a force of equal type and magnitude and in opposite direction.
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Impulse
force x time or is the change in momentum
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Conservation of Momentum
In a closed system. the total momentum of the object before an interaction is equal to the total momentum of the objects after the interaction.
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Perfectly Elastic Collisions
The toral kinectic energy of the system remains constant. Momentum and total energy is also conserved.
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Inelastic Collisions
The total kinectic energy of the system is not conserved and transformed into heat and sound. Momentum and total energy are conserved.
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Newton's Law of Gravitation
Two point masses will attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of their separation.
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Gravitational field
A region in which an object with mass will experience a force.
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Gravitational Field Strength
Gravitational field strength at a point is the force experienced per unit mass.
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Simple Harmonic Motion
A body experiences simple harmonic motion when its acceleration is directly proportional to its displacement from its equilibrium psoition, and is directed towards the equilibrium position.
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Internal Energy
The internal energy of a substance is the sum of the random distribution kinetic and potential energies of all the atoms or molecules.
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Specific Heat Capacity
The energy required to raise the temperature of one unit mass of a substance by 1K
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Latent Heat of Fusion
Is the energy supplied to melt a solid substance to liquid.
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Latent Heat of Vaporisation
The energy supplied to boil a liquid substance to gas (or vapour).
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Boyle's Law
The pressure exerted by a fixed amount of gas is inversely proportional to its volume, given that the temperature remains constant.
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Other cards in this set

Card 2

Front

The force exerted on an object is directly proportional to the rate of change of momentum.

Back

Newton's Second Law

Card 3

Front

Momentum = mass x velocity

Back

Preview of the back of card 3

Card 4

Front

If body A exert a force on body B, than body B will exert a force of equal type and magnitude and in opposite direction.

Back

Preview of the back of card 4

Card 5

Front

force x time or is the change in momentum

Back

Preview of the back of card 5
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