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Question (31)

QN004185

A clock's second hand completes 12 revolutions in 12 minutes. How many revolutions will it complete in 20 minutes?

(A) 18
(B) 20
(C) 22
(D) 24

Correct Answer: B

Explanation:

1 revolution per minute × 20

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Question (32)

QN004186

Which motion is associated with a spinning potter’s wheel?

(A) Rectilinear motion
(B) Rotational motion
(C) Oscillatory motion
(D) Random motion

Correct Answer: B

Explanation:

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Question (33)

QN004187

A child on a swing completes 14 oscillations in 2 minutes. Number of oscillations in 6 minutes is

(A) 28
(B) 35
(C) 42
(D) 56

Correct Answer: C

Explanation:

14 ÷ 2 × 6 = 42

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Question (34)

QN004188

Which of the following is not an example of periodic motion?

(A) Pendulum of a clock
(B) Earth's revolution around the Sun
(C) Swing moving regularly
(D) Random movement of a fly

Correct Answer: D

Explanation:

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Question (35)

QN004189

A wheel completes 18 rotations in 3 minutes. How many rotations will it complete in 8 minutes?

(A) 42
(B) 48
(C) 54
(D) 60

Correct Answer: B

Explanation:

18 ÷ 3 × 8 = 48

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Question (36)

QN004190

Which motion combines rotation around an axis and movement from one place to another?

(A) Oscillatory motion
(B) Circular motion only
(C) Rolling motion
(D) Periodic motion only

Correct Answer: C

Explanation:

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Question (37)

QN004191

A pendulum completes 25 oscillations in 5 minutes. Oscillations completed in 12 minutes are

(A) 50
(B) 55
(C) 60
(D) 75

Correct Answer: C

Explanation:

25 ÷ 5 × 12 = 60

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Question (38)

QN004192

Which motion is most useful in ceiling fans used in homes?

(A) Rectilinear motion
(B) Rotational motion
(C) Oscillatory motion
(D) Random motion

Correct Answer: B

Explanation:

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Question (39)

QN004193

A rotating disc completes 9 revolutions in one minute. Number of revolutions in 7 minutes is

(A) 54
(B) 63
(C) 72
(D) 81

Correct Answer: B

Explanation:

9 × 7 = 63

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Question (40)

QN004194

A clock pendulum completes 18 oscillations in 3 minutes. How many oscillations will it complete in 15 minutes?

(A) 72
(B) 81
(C) 90
(D) 96

Correct Answer: C

Explanation:

18 ÷ 3 × 15 = 90

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Question (31)

A clock's second hand completes 12 revolutions in 12 minutes. How many revolutions will it complete in 20 minutes?

Explanation:

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Question (32)

Which motion is associated with a spinning potter’s wheel?

Explanation:

Link:

Question (33)

A child on a swing completes 14 oscillations in 2 minutes. Number of oscillations in 6 minutes is

Explanation:

Link:

Question (34)

Which of the following is not an example of periodic motion?

Explanation:

Link:

Question (35)

A wheel completes 18 rotations in 3 minutes. How many rotations will it complete in 8 minutes?

Explanation:

Link:

Question (36)

Which motion combines rotation around an axis and movement from one place to another?

Explanation:

Link:

Question (37)

A pendulum completes 25 oscillations in 5 minutes. Oscillations completed in 12 minutes are

Explanation:

Link:

Question (38)

Which motion is most useful in ceiling fans used in homes?

Explanation:

Link:

Question (39)

A rotating disc completes 9 revolutions in one minute. Number of revolutions in 7 minutes is

Explanation:

Link:

Question (40)

A clock pendulum completes 18 oscillations in 3 minutes. How many oscillations will it complete in 15 minutes?

Explanation:

Link:

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