Cambridge A-Level · Physics

Circular motion

9 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 9 questions

A $4 kg$ mass moves in a circle of radius $4 m$ at a constant speed of $10 m/s$ . What is the centripetal force (in N)?
A $2 kg$ mass moves in a circle of radius $5 m$ at a constant speed of $4 m/s$ . What is the centripetal force (in N)?
A $2 kg$ mass moves in a circle of radius $4 m$ at a constant speed of $4 m/s$ . What is the centripetal force (in N)?
A small mass of $0.25 kg$ hangs from a string of length $0.80 m$ and moves in a horizontal circle so that the string makes an angle of $3 0^{\circ}$ with the vertical (a conical pendulum)…
A car travels round a flat circular bend of radius $45 m$ . The coefficient of friction between tyres and road is $0.60$ . What is the maximum speed at which the car can take the bend without sk…
A $1 kg$ mass moves in a circle of radius $2 m$ at a constant speed of $6 m/s$ . What is the centripetal force (in N)?
A $1 kg$ mass moves in a circle of radius $5 m$ at a constant speed of $6 m/s$ . What is the centripetal force (in N)?
A $2 kg$ mass moves in a circle of radius $2 m$ at a constant speed of $4 m/s$ . What is the centripetal force (in N)?
A $4 kg$ mass moves in a circle of radius $5 m$ at a constant speed of $10 m/s$ . What is the centripetal force (in N)?

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