ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

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

Try The 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

A typical rocket consumes about

Question # 2

Change in momentum is one second is called:

Question # 3

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 4

A typical rocket ejects the burnt gases at speeds over

Question # 5

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

Question # 6

A body of mass 1.0 kg is falling with an acceleration of 10 m/s2. Its apparent weight will be (g=10 m/s2)

Question # 7

One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:

Question # 8

Which one of the following is dimensionless:

Question # 9

A change in position of a body from its initial position to its final position is known as

Question # 10

The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?

Question # 11

Velocity is a

Question # 12

Force is a:

Question # 13

Rate of change of momentum is called

Question # 14

Rocket engines lift a rocket from the earth surface, because hot gas with high velocity

Question # 15

Tick the conservative force:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Linear momentum is a
A. fixed quantity
B. constant quantity
C. scalar quantity
D. vector quantity
2 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
3 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)
A. 58.8 m/s
B. 49 m/s
C. 65 m/s
D. 19.6 m/s
4 Root out of the conventional source of energy:
A. Energy from biomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
5 A train is moving with a velocity of 25 m/s and a car is moving behind it by a velocity of 8 m/s in same direction. The relative velocity of train with respect to car is
A. 17 m/s
B. 33 m/s
C. 17.5 m/s
D. none
6 The vertical and horizontal range will be equal id angle of projection is
A. 76°
B. 45°
C. 60°
D. 120°
7 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
8 A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
9 A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?
A. 0.1 m/s
B. 10 m/s
C. 1 m/s
D. 0.01 m/s
10 The product of force and time is called
A. acceleration
B. linear momentum
C. angular momentum
D. impulse

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