An object moving with uniform circular motion has MCQ with Answer and Explanation

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An object moving with uniform circular motion has

A. Constant acceleration

B. Constant velocity

C. Constant displacement

D. Constant speed

Answer: Option D

Solution (By JKSSB Mock Tests)

Speed constant, velocity and acceleration (centripetal) change direction. KE constant.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1

Which of the following is used as a moderator in nuclear reactor?

A. Boron

B. Graphite

C. Uranium

D. Cadmium

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Correct Answer: Option B

Explanation:
Graphite, heavy water (D₂O), beryllium are moderators. Cadmium and boron are control rods (absorb neutrons). Uranium is fuel. Moderator slows neutrons.

This question belongs to: Science Physics

Question #2

The mass of a proton is approximately how many times the mass of an electron?

A. 1000

B. 10

C. 100

D. 1836

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Correct Answer: Option D

Explanation:
Proton mass ≈ 1.67 × 10⁻²⁷ kg, electron ≈ 9.11 × 10⁻³¹ kg, ratio ≈ 1836. Neutron slightly heavier. Atomic mass concentrated in nucleus.

This question belongs to: Science Physics

Question #3

A wave of frequency 60 Hz has period

A. 60 s

B. 0.0167 s

C. 0.6 s

D. 1/60 s

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Correct Answer: Option D

Explanation:
T = 1/60 s.

This question belongs to: Science Physics

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