Physics Past Paper Mcqs of 2022 | mosaicbro.com

Physics Past Paper Mcqs of 2022

7 of 65 questions (Page 5 of 10)

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29 During a projectile path, air friction affects:
Correct Answer: D
Explanation: Air resistance affects both horizontal and vertical components of motion.
30 Which of the following pairs has the same direction always?
Correct Answer: C
Explanation: Force and acceleration are always in the same direction (F = ma).
31 The third law of motion explains:
Correct Answer: D
Explanation: Newton's third law states that forces exist in pairs (action-reaction).
32 A stone is dropped from a building’s top 80 m high from the ground. In how much time will it touch the ground?
Correct Answer: B
Explanation: Time t = √(2h/g) = √(160/9.8) ≈ 4.04 s. Closest to 4.5 s.
33 If two equal masses are in motion with same individual speeds, we can conclude that:
Correct Answer: A
Explanation: For equal masses and speeds, momenta (p = mv) are identical.
34 A body is dropped from certain height and falls freely. Its velocity after 5 seconds will be:
Correct Answer: D
Explanation: Velocity v = gt = 9.8 * 5 = 49 m/s.
35 A bullet is fired horizontally with 20m/s. In the absence of air friction, its horizontal velocities after 2 seconds will be:
Correct Answer: D
Explanation: Horizontal velocity remains constant (20 m/s) in the absence of air resistance.
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