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Physics 914 MCQs [All-Courses]

Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is________________?

A At the highest point

B At the lowest point

C At any point during motion

D At the point where gravity is not acting

Review Detailed Answer

Correct Answer: At the lowest point

What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ?

A 1N

B 10N

C 2N

D 100N

Review Detailed Answer

Correct Answer: 1N

The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?

A π

B 3π

C 6π

D 12π

Review Detailed Answer

Correct Answer: π

The angular speed of seconds hand of a watch in rads-1 is______________?

A π

B π/2

C π/30

D π/180

Review Detailed Answer

Correct Answer: π

In an angular motion, Newton’s second law of motion is_____________?

A F=ma

B F=τp/It

C Στ = I α

D All above

Review Detailed Answer

Correct Answer: Στ = I α

If a wheel of radius r turns through an angle of 30° then the distance through which any point on its rim moves is______________?

A π /3 x r

B π/6 x r

C V/30 x r

D π / 180 x r

Review Detailed Answer

Correct Answer: π/6 x r

A cyclist cycling around a circular racing track skids because_____________?

A the centripetal force upon him is less than limiting friction

B the centripetal force upon him is greater than limiting friction

C the centripetal force upon him is equal to the limiting friction

D the friction between the tyres of the cycle and road vanishes

Review Detailed Answer

Correct Answer: the centripetal force upon him is greater than limiting friction

When a wheel 1 m in diameter makes 30 rev min the linear speed of the point on its rim in ms-1 is_______________?

A 2π

B π/2

C π

D 20π

Review Detailed Answer

Correct Answer: π/2

The angular speed for daily rotation of the earth in rad S-1 is______________?

A 7.3 x 10 radians/second

B 7.3 x 5 radians/second

C 3.7 x 10 7.3 x 5 radians/second

D 7.3 x 10-5 radians/second

Review Detailed Answer

Correct Answer: 7.3 x 10-5 radians/second

A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________?

A πR

B 2π R

C 0

D 4πR

Review Detailed Answer

Correct Answer: 0

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Physics 914 MCQs [All-Courses]

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All Topics 914

If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is________________?

What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ?

The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?

The angular speed of seconds hand of a watch in rads-1 is______________?

In an angular motion, Newton’s second law of motion is_____________?

If a wheel of radius r turns through an angle of 30° then the distance through which any point on its rim moves is______________?

A cyclist cycling around a circular racing track skids because_____________?

When a wheel 1 m in diameter makes 30 rev min the linear speed of the point on its rim in ms-1 is_______________?

The angular speed for daily rotation of the earth in rad S-1 is______________?

A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________?