Waves And Motions(General Knowledge > General Science ) Questions and answers for exam Preparation

General Knowledge > General Science

WAVES AND MOTIONS MCQs

Laws Of Motion, Second Law Motion, Uniform Circular Motion, First Law Of Motion, Third Law Motion, Horizontal Projectile Motion, Oscillations And Waves, Radio Wave Propagation, Wave Optics

Total Questions : 131 | Page 12 of 14 pages

Question 111. The second law of motion gives the measure of which of the following?

Force
Acceleration
Momentum
Angular Momentum

Discuss Question

Answer: Option A. -> Force

Question 112. What is the second law of motion?

The state of motion of an object does not change as long as the net force acting on the object is 0.
Friction causes an object to slow down and affect the motion.
The acceleration of an object is equal to the net force acting upon it divided by the object’s mass.
The measure of inertia relative to the object’s mass is the object’s acceleration.

Discuss Question

Answer: Option C. -> The acceleration of an object is equal to the net force acting upon it divided by the object’s mass.

Question 113. How can Newton's second law be represented mathematically?

F=MA
M= F/A
A= F/M
All are correct

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Answer: Option D. -> All are correct

Question 114. What's the formula for Newton's second law of motion (Force)?

F= M-A
F= A/M
F= M x A
F= A + M

Discuss Question

Answer: Option C. -> F= M x A

Question 115. A sled sliding on a flat, icy surface with a constant velocity is best described by

Newton’s first law of motion for objects at rest.
Newton’s first law of motion for objects in motion.
Newton’s second law of motion.
Newton’s third law of motion.

Discuss Question

Answer: Option B. -> Newton’s first law of motion for objects in motion.

Question 116. If a force of 26 N is exerted on two balls, one with a mass of 0

The one with a mass of .78 kg will have the greatest acceleration.
The one with a mass of .52 kg will have the greatest acceleration.
They will both accelerate at the same rate.
All of above

Discuss Question

Answer: Option B. -> The one with a mass of .52 kg will have the greatest acceleration.

Question 117. An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations