# The Newtonian World

All the main definitions for The Newtonian World Topic

HideShow resource information
• 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.
1 of 17
Newton's Second Law
The force exerted on an object is directly proportional to the rate of change of momentum.
2 of 17
Momentum
Momentum = mass x velocity
3 of 17
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.
4 of 17
Impulse
force x time or is the change in momentum
5 of 17
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.
6 of 17
Perfectly Elastic Collisions
The toral kinectic energy of the system remains constant. Momentum and total energy is also conserved.
7 of 17
Inelastic Collisions
The total kinectic energy of the system is not conserved and transformed into heat and sound. Momentum and total energy are conserved.
8 of 17
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.
9 of 17
Gravitational field
A region in which an object with mass will experience a force.
10 of 17
Gravitational Field Strength
Gravitational field strength at a point is the force experienced per unit mass.
11 of 17
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.
12 of 17
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.
13 of 17
Specific Heat Capacity
The energy required to raise the temperature of one unit mass of a substance by 1K
14 of 17
Latent Heat of Fusion
Is the energy supplied to melt a solid substance to liquid.
15 of 17
Latent Heat of Vaporisation
The energy supplied to boil a liquid substance to gas (or vapour).
16 of 17
Boyle's Law
The pressure exerted by a fixed amount of gas is inversely proportional to its volume, given that the temperature remains constant.
17 of 17

## 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

### 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.

### Card 5

#### Front

force x time or is the change in momentum