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

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

Question # 2

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 3

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

Question # 4

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 5

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 6

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

Question # 7

Force is a:

Question # 8

The horizontal range of projectile, at a certain place, depends upon

Question # 9

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

Question # 10

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 11

Acceleration produced in a body by a force varies

Question # 12

Work done along a closed path in a gravitational field is:

Question # 13

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 # 14

Slope of velocity time graph represents:

Question # 15

Work done along a closed path in a gravitational force is:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 If d is the displacement of the body in time t, then its average velocity will be
A. Vav= d x t
B. Vav = t/d
C. Vav = d/t
D. Vav = d/t
2 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
3 A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear
A. To fall vertically down
B. To fall at an angle going from west to east
C. To fall at an angle going from east to west
D. The information given is insufficient to decide the direction of rain
4 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
5 A typical rocket consumes about
A. 100 kg s-1of fuel
B. 1000 kg s-1of fuel
C. 10000 kg s-1of fuel
D. 100000 kg s-1of fuel
6 Root out the conventional source of energy:
A. Energy from blomass
B. hydroelectric energy
C. Geothermal energy
D. None of these
7 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N
8 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
9 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
10 When a horse pulls a cart, the force that makes the horse run forward is the force exerted by
A. The horse on the ground
B. The horse on the cart
C. The ground on the horse
D. The ground on the cart

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