# Motion

• Created by: reviser56
• Created on: 29-04-18 09:40
Acceleration
The amount by which speed increases in one second.
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Atmospheric Pressure
Pressure caused by the collisions of air molecules that produce a force.
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Average Speed
The total distance travelled in the total time taken for a complete journey.
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Centre Of Gravity
The point in an object where the force of gravity seems to act.
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Centre Of Mass
The point in an object where the mass of an object seems to act.
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Compressed
Squashed into a smaller space.
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Density
The mass of a material in a certain volume.
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Distance-Time Graph
A graph that shows how far an object moves each second.
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Gas Pressure
The force exerted (applied) by air particles when they collide with a surface.
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Incompressible
Cannot be compressed (squashed).
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Instantaneous Speed
The speed at a particular moment.
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Law Of Moments
The object is in equilibrium (balanced) if the clockwise moments equal the anti-clockwise moments.
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Liquid Pressure
The pressure produced by collisions of particles in a liquid.
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Metres Per Second
A unit of speed.
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Moment
A measure of the ability of a force to rotate an object about a pivot.
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Newton Metres
The unit of moment.
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Newton Metres Per Metre Squared
A unit of Pressure.
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Pivot
The point about which a lever or see-saw balances.
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Pressure
A forced exerted (applied) on a certain area.
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Relative Motion
The difference between the speeds of 2 moving objects, or of a moving and stationary object.
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Speed
A measure of how far something travels in a given time.
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## Other cards in this set

### Card 2

#### Front

Pressure caused by the collisions of air molecules that produce a force.

#### Back

Atmospheric Pressure

### Card 3

#### Front

The total distance travelled in the total time taken for a complete journey.

#### Back ### Card 4

#### Front

The point in an object where the force of gravity seems to act.

#### Back ### Card 5

#### Front

The point in an object where the mass of an object seems to act.

#### Back ## Comments

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