Circular Motion
Physics ⇒ Mechanics
Circular Motion starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Circular Motion.
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See sample questions for grade 10
A 0.2 kg object is attached to a string and moves in a circle of radius 0.4 m at 2 m/s. What is the centripetal acceleration?
A 0.5 kg ball is attached to a string and swung in a horizontal circle of radius 1.5 m at a speed of 3 m/s. Calculate the tension in the string.
A 1 kg mass is moving in a circle of radius 2 m with an angular velocity of 3 rad/s. What is its linear speed?
A 2 kg object moves in a circle of radius 0.5 m at a speed of 6 m/s. What is the magnitude of the centripetal force?
A car of mass 1000 kg is moving at a speed of 20 m/s around a curve of radius 50 m. Calculate the centripetal force acting on the car.
A child is riding a merry-go-round with a radius of 3 m, completing one revolution every 6 seconds. What is the linear speed of the child?
A cyclist moves around a circular track of radius 10 m at a speed of 5 m/s. What is the angular velocity?
A satellite orbits the Earth in a circular path. What provides the centripetal force for its motion?
A stone is tied to a string and whirled in a vertical circle. At the top of the circle, what are the forces acting on the stone?
A stone tied to a string is whirled in a horizontal circle of radius 2 m at a speed of 4 m/s. What is its centripetal acceleration?
A wheel rotates at 120 revolutions per minute (rpm). What is its frequency in Hz?
Describe what happens to the centripetal force if the speed of an object in circular motion is doubled, keeping the radius constant.
Explain why an object moving in a circle at constant speed is said to be accelerating.
Explain why passengers feel pushed outward when a car turns sharply, even though the actual force acts toward the center.
If an object moves in a circle of radius r with constant speed v, what is the expression for its angular velocity ω?
If the radius of a circle is doubled while keeping the speed constant, what happens to the centripetal acceleration?
State the formula for centripetal acceleration in terms of velocity and radius.
State the relationship between linear speed (v), angular velocity (ω), and radius (r) in circular motion.
The angular displacement of an object moving in a circle of radius 2 m is π radians. What is the distance traveled by the object?
The angular velocity of a rotating object is 2 rad/s. How many revolutions does it complete in 1 minute?
