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This mock test of Test: Displacement And Velocity for Class 11 helps you for every Class 11 entrance exam.
This contains 20 Multiple Choice Questions for Class 11 Test: Displacement And Velocity (mcq) to study with solutions a complete question bank.
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QUESTION: 1

The displacement of a particle is given by x = (t – 2)^{2} where x is in meters and t in seconds. The distance covered by the particle in the first 4 seconds is

Solution:

QUESTION: 2

The ratio of displacement to distance is

Solution:

As the magnitude of displacement always either less than or equal to distance travel. Hence, the numerical ratio of displacement to distance is either less than or equal to 1.

QUESTION: 3

A vehicle travels half the distance L with speed V_{1}and the other half with speed V_{2}, then its average speed is

Solution:

QUESTION: 4

Which of the following statements about distance is true:

Solution:

QUESTION: 5

Which of the following quantity remains constant during the uniform circular motion?

Solution:

When a body is in uniform circular motion, its speed remains constant but its velocity, angular acceleration, angular velocity changes due to change in its direction.

QUESTION: 6

The magnitude of average velocity is equal to the average speed if the motion of an object is along a straight line and in the same direction.

Solution:

Answer: The **magnitude of average velocity** of an **object** is **equal** to its **average speed**, only **in one** condition **when** an **object** is moving in a **straight line**.

QUESTION: 7

A particle is moving along a circle of radius R such that it completes one revolution in 40 seconds. What will be the displacement after 2 minutes 20 seconds?

Solution:

QUESTION: 8

The numerical ratio of velocity to speed is:

Solution:

When an object is moving along a straight path, magnitude of average **velocity** is equal to the average **speed**. Therefore, **numerical ratio** of average **velocity** to average **speed is** one in a straight line motion.

But, during curved motion, the **displacement<distance covered**, so the **velocity<speed.**

QUESTION: 9

Two escalators move people up and down between floors of a shopping mall at the same rate, either up or down. What of the following statements regarding the motion of the escalators is true?

Solution:

QUESTION: 10

A coordinate system that enables us to describe the position of a body in space at any instant of time is called

Solution:

QUESTION: 11

The displacement of a particle starting from rest (at t = 0) is given by s = 6t^{2}-t^{3 }. The time in seconds at which the particle will attain zero velocity again, is

Solution:

0 = 3t (4 - t) t - 0 or 4s

Here t = 0 is not realistic so at t = 4s the velocity will be zero.

QUESTION: 12

The displacement of an object may be

Solution:

QUESTION: 13

If a body does not change its direction during the course of its motion, then

Solution:

QUESTION: 14

36 km/h is equal to:

Solution:

36Km/h = 36*1000/3600 m/s (1Km. = 1000m. & 1hour = 3600sec.)

= 10 m/s

QUESTION: 15

The ratio of magnitude of velocity and speed is always:

Solution:

The displacement of the body in given time is always equal to or less than distance covered, because, velocity is displacement per unit time and speed is distance covered per unit time, therefore, ratio of magnitude of velocity and speed is always equal to or less than one.

QUESTION: 16

Suppose our school is 1 km away from our house, and we go to school in the morning, and in the afternoon we come back. Then, the total displacement for the entire trip is

Solution:

QUESTION: 17

An object is in uniform motion along a straight line if it

Solution:

QUESTION: 18

A man starts from his home with a speed of 4 km/h on a straight road up to his office 5 km away and returns to home, then the path length covered is

Solution:

QUESTION: 19

A car covers a distance of 5 km in 5 mins, its average speed is equal to

Solution:

QUESTION: 20

Which of the following is not an example of a rectilinear motion?

Solution:

**Rectilinear motion** is another name for straight-line **motion**. This type of **motion** describes the **movement** of a particle or a body. A body is said to experience **rectilinear motion** if any two particles of the body travel the same distance along two parallel straight lines.

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