A level Uniform Circular Motion Quiz 1

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About this quiz

This A level Uniform Circular Motion Quiz 1 quiz contains 16 multiple choice questions designed to help you revise and test your A level Uniform Circular motion Quizzes knowledge. Select an answer for each question and click “Submit Answer” to see instant feedback. Take your time and try to score as high as possible!

Description

A level Uniform Circular motion Quiz. In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. The equations of motion describe the movement of the center of mass of a body.

Examples of circular motion include: an artificial satellite orbiting the Earth at a constant height, a ceiling fan's blades rotating around a hub, a stone which is tied to a rope and is being swung in circles, a car turning through a curve in a race track, an electron moving perpendicular to a uniform magnetic field, and a gear turning inside a mechanism.

Since the object's velocity vector is constantly changing direction, the moving object is undergoing acceleration by a centripetal force in the direction of the center of rotation. Without this acceleration, the object would move in a straight line, according to Newton's laws of motion.

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Question 1 of 16

A cyclist turns around a curve at 15 miles/hour. If he turns at double the speed, the tendency to overturn is

Question 2 of 16

The angular velocity of a body moving with a constant speed v in a circle of radius r is given by

Question 3 of 16

What will be the velocity vector of a particle moving in a circle describing equal angles in equal times

Question 4 of 16

A body moves with a constant speed in a circular path is moving in a circular path with a constant speed. It has

Question 5 of 16

A motorcyclist going with a constant speed in a circular track has

Question 6 of 16

What could be the reason a car moving on a horizontal road gets thrown out of the road while taking a turn

Question 7 of 16

If a particle moves with constant angular velocity in a circle then during the motion its

Question 8 of 16

A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because

Question 9 of 16

A body moves with a constant speed along a circle. Then,

Question 10 of 16

A tachometer is a device to measure

Question 11 of 16

A fighter aeroplane flying in the sky dives with a speed of 360 km/hr in a vertical circle of radius 200 m. Weight of the pilot sitting in it is 75 kg. What will be the value of force with which the pilot presses his seat when the aeroplane is at highest position (g = 10 m/s^2)

Question 12 of 16

A frictional track ABCDE ends in a circular loop of radius R, body slides down the track from point A which is at a height h of 5 cm. Maximum value of R for the body to successfully complete the loop is:

Question 13 of 16

A cyclist is moving in a circular track of radius 80 m, with a velocity of 36 km/hour. In order to keep his balance, he has to lean inwards from the vertical through an angle q. If g = 10 m/s2, then q is given by

Question 14 of 16

A coin kept on a rotating gramophone disc just begins to slip if its centre is at a distance of 8 cm from the centre of the disc. The angular velocity of the gramophone disc is then doubled. Through what distance, the coin should be shifted towards the centre, so that the coin will just slip?

Question 15 of 16

A car sometimes overturns while taking a turn. When it overturns, it is

Question 16 of 16

A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is