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MDCAT Question Bank

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1009 available questions

Physics · Question 831

Which component of the velocity of projectile remains constant throughout the motion?

  1. Horizontal component
  2. Vertical component
  3. Both components
  4. Neither component
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Correct answer: A

Horizontal component

The printed worksheet key marks A (Horizontal component) as the correct answer.

Physics · Question 832

Which quantities remain constant during ideal projectile motion?

  1. Horizontal velocity
  2. Vertical acceleration
  3. Horizontal acceleration
  4. All of these
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Correct answer: D

All of these

The printed worksheet key marks D (All of these) as the correct answer.

Physics · Question 833

At what launch angle is a projectile's horizontal range equal to its maximum height?

  1. 45°
  2. 30°
  3. 76°
  4. 60°
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Correct answer: C

76°

The printed worksheet key marks C (76°) as the correct answer.

Physics · Question 834

At the highest point of projectile motion, what is the angle between velocity and acceleration?

  1. 90°
  2. 180°
  3. 0°
  4. 76°
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Correct answer: A

90°

The printed worksheet key marks A (90°) as the correct answer.

Physics · Question 835

A passenger in a car moving at constant velocity throws an apple vertically upward. Ignoring air resistance, what path does an outside observer see?

  1. A parabolic path, returning to the moving car
  2. A parabola falling behind the car
  3. A vertical straight line, returning to the car
  4. A parabola falling ahead of the car
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Correct answer: A

A parabolic path, returning to the moving car

The printed worksheet key marks A (A parabolic path, returning to the moving car) as the correct answer.

Physics · Question 836

Torque is the rotational analogue of force in:

  1. Translatory motion
  2. Vibratory motion
  3. Rotational motion
  4. Linear motion
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Correct answer: C

Rotational motion

The printed worksheet key marks C (Rotational motion) as the correct answer.

Physics · Question 837

What torque does a body's weight produce about its own centre of gravity?

  1. mgr
  2. Zero
  3. wxr
  4. f×F
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Correct answer: B

Zero

The printed worksheet key marks B (Zero) as the correct answer.

Physics · Question 838

For a constant torque through angular displacement θ, the work done is:

  1. Fd
  2. rθ
  3. Iα
  4. τθ
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Correct answer: D

τθ

The printed worksheet key marks D (τθ) as the correct answer.

Physics · Question 839

If a force's line of action passes through the rotation axis, its torque is:

  1. Maximum
  2. Zero
  3. Negative
  4. Positive
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Correct answer: B

Zero

The printed worksheet key marks B (Zero) as the correct answer.

Physics · Question 840

Which statement is not true of the two forces forming a couple?

  1. They act in opposite directions
  2. They act on the same body
  3. They act at the same point
  4. They have equal magnitudes
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Correct answer: C

They act at the same point

The printed worksheet key marks C (They act at the same point) as the correct answer.