ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

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

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Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Question # 1

The effect of applying a force on a moving body is to change

Question # 2

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 3

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 4

Inertia mass and gravitational mass are

Question # 5

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Question # 6

The direction of the acceleration is the same as that of

Question # 7

A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:

Question # 8

When a person jumps off the ground, the reaction force of the ground is

Question # 9

The slopes of the tangent at any point on the curve gives the value of the

Question # 10

The magnitude of the displacement is a line from initial position to final position which is

Question # 11

The motion in a plane is the motion in

Question # 12

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

Question # 13

Newton published laws of motion in his famous book "principia" in

Question # 14

During the upward motion of the projectile, the vertical component of velocity:

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same
2 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
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)
A. 9.8 m/s
B. 19.6 m/s
C. 39.2 m/s
D. 98.0 m/s
4 The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero
5 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
6 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:
A. First
B. Second
C. Third
D. None of these
7 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
8 A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is
A. 2100 m/s2
B. 1400 m/s2
C. 700 m/s2
D. 400 m/s2
9 If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?
A. 1 x 106
B. 2 x 106
C. 2 x 105
D. 1 x 105
10 A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds
A. 25 m
B. 20 m
C. 50 m
D. 9.8 m

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