ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 3 Motion and Force

Try The MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

Swimming is based on the principle of

Question # 2

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 3

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine, is (Take g=9.8 m/s2)

Question # 4

By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)

Question # 5

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

Question # 6

A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is

Question # 7

A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?

Question # 8

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 9

A body moving with uniform velocity has

Question # 10

A projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 11

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 12

The vertical and horizontal range will be equal id angle of projection is

Question # 13

A typical rocket consumes about

Question # 14

Inertia mass and gravitational mass are

Question # 15

A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The vertical and horizontal range will be equal id angle of projection is
A. 76°
B. 45°
C. 60°
D. 120°
2 If the values of instantaneous and average velocities are equal, the body is said to be moving with
A. uniform acceleration
B. uniform speed
C. variable velocity
D. uniform velocity
3
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
4 When a force is applied on a body, several effects are possible Which of the following effect could not occur?
A. the body rotates
B. the body speeds up
C. the mass of the body decreases
D. the body changes its direction
5 The slopes of the tangent at any point on the curve gives the value of the
A. average velocity at that point
B. instantaneous velocity at that point
C. average acceleration at that point
D. instantaneous acceleration at that point
6 The product of force and time is called change in:
A. Momentum
B. Impulse
C. Force
D. Both a and b
7 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola
8 Root out of the conventional source of energy:
A. Energy from biomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
9 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
10 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve

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