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 path (or trajectory) described by a projectile is

Question # 2

The path followed by the projectile is known as:

Question # 3

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 # 4

Tick the conservation force:

Question # 5

The velocity of a body at any instant of its motion is known as

Question # 6

If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?

Question # 7

Slope of velocity-time graph represents:

Question # 8

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

Question # 9

A ball is dropped vertically down and it takes time t to reach the ground. At time t/2

Question # 10

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 11

When a body is moving on a surface, the force of friction is called

Question # 12

When two protons are brought closer potential energy of both of them:

Question # 13

Velocity is a

Question # 14

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 # 15

A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The motion of a body in a straight line is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
2 What must be changing when a body is accelerating uniformly?
A. the force acting on a body
B. the velocity of the body
C. the mass of the body
D. the speed of the body
3 Acceleration in a body is always produced in the directin of:
A. Velocity
B. Weight
C. Force
D. Botha B and C
4 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
5 A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of
A. 3 s
B. 5 s
C. 7 s
D. 9 s
6 The velocity of a projectile is maximum
A. at the point of projection
B. just before striking the ground
C. at none of them
D. at both of them
7 Acceleration produced in a body by a force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
8 Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same
A. Momentum
B. Kinetic energy
C. Velocity
D. Total energy
9 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle
10 Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is
A. 22 m
B. 6 m
C. 33 m
D. 7.8 m

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