# Unit 4 Keywords

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• Created by: Jamsebob
• Created on: 15-01-14 13:32
Gravitation Field Strength
The force per unit mass at a point in a gravitational field.
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Newton's Law of Gravitation
The force between two masses is directly proportional to the product of their masses and inversely proportional to the square of their seperation.
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Gravitational Potential
The work done in moving a unit mass to that point from infinity, where the potential is defined as zero.
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Coulomb's Law
The force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of their separation.
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Electric Field Strength
The force per unit positive charge at that point.
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Electric Potential
The work done in moving a unit positive charge to that point from infinity, where the potential is defined as zero.
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## Other cards in this set

### Card 2

#### Front

Newton's Law of Gravitation

#### Back

The force between two masses is directly proportional to the product of their masses and inversely proportional to the square of their seperation.

### Card 3

#### Front

Gravitational Potential

Coulomb's Law

### Card 5

#### Front

Electric Field Strength

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