Circular Motion (AQA GCSE Physics Combined Science): Flashcards
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Cause of acceleration in circular motion
Cause of acceleration in circular motion
Direction continuously changes, so velocity changes
Type of quantity velocity is
Type of quantity velocity is
Vector (has magnitude and direction)
Name of resultant force in circular motion
Name of resultant force in circular motion
Centripetal force
Direction of centripetal force
Direction of centripetal force
Towards the centre of the circle
Centripetal force for conker on string
Centripetal force for conker on string
Tension in the string
Centripetal force for car on roundabout
Centripetal force for car on roundabout
Friction between road and tyres
Centripetal force for satellite in orbit
Centripetal force for satellite in orbit
Gravitational pull of the Earth
Height of polar orbit satellites (km)
Height of polar orbit satellites (km)
Around 200 km above sea level
Speed of polar orbit satellites (m/s)
Speed of polar orbit satellites (m/s)
Nearly 8,000 m/s
Orbital period of geostationary satellite
Orbital period of geostationary satellite
24 hours
Height of geostationary satellites (km)
Height of geostationary satellites (km)
Around 36,000 km above Earth's surface
Speed of geostationary satellites (m/s)
Speed of geostationary satellites (m/s)
About 2,000 m/s
How geostationary satellites appear from ground
How geostationary satellites appear from ground
Stay in same spot in the sky
Uses of geostationary orbits
Uses of geostationary orbits
Communications, TV broadcasting, weather forecasting
Uses of polar orbits
Uses of polar orbits
Earth observation, weather monitoring, reconnaissance