Circular Orbits (AQA GCSE Physics): Flashcards
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Practise the cards
12 cards from this deck
Shape of planetary orbits
Shape of planetary orbits
Almost circular
What causes orbits to occur
What causes orbits to occur
Force of gravity
Why velocity changes in circular orbit at constant speed
Why velocity changes in circular orbit at constant speed
Direction changes, and velocity has both speed and direction
Force that prevents planets flying off into space
Force that prevents planets flying off into space
Gravitational force towards the sun
Why planets travel in circular paths
Why planets travel in circular paths
Combination of momentum and gravitational force
Why planets maintain constant speed in orbit
Why planets maintain constant speed in orbit
No friction or air resistance in space
Gravitational force strength vs distance from star
Gravitational force strength vs distance from star
Stronger closer to the star/planet
Speed needed when gravitational force is stronger
Speed needed when gravitational force is stronger
Faster speed to remain in orbit
What changes if orbiting object's speed changes
What changes if orbiting object's speed changes
Radius of the orbit changes
Orbit radius when object travels faster
Orbit radius when object travels faster
Smaller radius
What moons orbit planets in
What moons orbit planets in
Almost circular orbits
What artificial satellites orbit planets in
What artificial satellites orbit planets in
Almost circular orbits