Physics Unit 3 - Circular Motion

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Acceleration
The rate of change of an object's velocity
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Centripetal force
The resultant force towards the centre of a circle acting on an object moving in a circular path
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Distance
The scalar quantity that describes the actual distance covered between two points along the path travelled
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Ellipse
An oval. The shape of an orbit
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Force
Any influence on an object that causes it to change direction or speed
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Geostationary orbit
An orbit around Earth at a specific altitude such that the satellite stays above the same point on the Earth's equator
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Gravity
The universal force that attracts any mass to every other mass in the universe
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Orbit
The elliptical path a smaller object takes around a larger object in space
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Polar orbit
A low altitude, high speed orbit going over the Earth's poles. A satellite in a polar orbit makes several passes around the Earth each day
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Satellite
A smaller object orbiting around a larger object in space. Satellites may be natural, such as the Earth's moon, or artificial, such as communications satellites
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Speed
Distance travelled per unit of time
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Velocity
A vector quantity describing the speed of an object in a given direction
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Other cards in this set

Card 2

Front

The resultant force towards the centre of a circle acting on an object moving in a circular path

Back

Centripetal force

Card 3

Front

The scalar quantity that describes the actual distance covered between two points along the path travelled

Back

Preview of the back of card 3

Card 4

Front

An oval. The shape of an orbit

Back

Preview of the back of card 4

Card 5

Front

Any influence on an object that causes it to change direction or speed

Back

Preview of the back of card 5
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