Circular Motion (AQA GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
Why does an object moving in a circle at constant speed still accelerate?
Why does an object moving in a circle at constant speed still accelerate?
Its direction continuously changes
Why is velocity described as a vector quantity?
Why is velocity described as a vector quantity?
It has both magnitude and direction
What is the name of the resultant force in circular motion?
What is the name of the resultant force in circular motion?
Centripetal force
In which direction does centripetal force act?
In which direction does centripetal force act?
Towards the centre of the circle
What would happen to an object in circular motion without centripetal force?
What would happen to an object in circular motion without centripetal force?
It would move in a straight line
What provides the centripetal force for a conker on a string?
What provides the centripetal force for a conker on a string?
Tension in the string
What provides the centripetal force for a car turning on a roundabout?
What provides the centripetal force for a car turning on a roundabout?
Friction between road and tyres
What provides the centripetal force for a satellite orbiting Earth?
What provides the centripetal force for a satellite orbiting Earth?
Gravitational pull of Earth
How close to Earth can satellites in polar orbits travel?
How close to Earth can satellites in polar orbits travel?
As low as 200 km above sea level
What speed must satellites in polar orbits travel at to maintain their orbit?
What speed must satellites in polar orbits travel at to maintain their orbit?
Nearly 8,000 m/s
How long does it take a geostationary satellite to complete one orbit?
How long does it take a geostationary satellite to complete one orbit?
24 hours
At what altitude are geostationary satellites positioned?
At what altitude are geostationary satellites positioned?
Around 36,000 km above Earth