Question # 1

If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be

Choose an answer

Unequal

Exactly equal

Roughly equal

Zero

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Choose an answer

Mg

1/2 Mg

Zero

2 Mg

Acceleration produced in a body by the force varies

Choose an answer

inversely as the applied force

directly as the applied force

directly as the mass of the body

none of them

A typical rocket consumes about

Choose an answer

100 kg s^-1of fuel

1000 kg s^-1of fuel

10000 kg s^-1of fuel

100000 kg s^-1of fuel

Flight of rocket in the space is an example of

Choose an answer

Newton's first law

Newton's third law

Newton's second law

all of them

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

Choose an answer

100 m/sec

140 m/sec

1960 m/sec

196 m/sec

The velocity given to a body to go out of the influence of earth's gravity is known as:

Choose an answer

Terminal velocity

Orbital velocity

Escape velocity

None of these

The consumption of energy by a 1000 watt heter in half an hour is:

Choose an answer

5 Kwh

0.5 Kwh

2.5 Kwh

3.2 Kwh

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Choose an answer

20 m

400 m

1440 m

2880 m

Rate of change of momentum is called

Choose an answer

Impulse

Force

Torque

Momentum

The SI units of momentum is

Choose an answer

kg m s^-2

kg ms

kg m s²

N-s

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

Choose an answer

2 kg

3 kg

4 kg

8 kg

The artillery shells travel along parabolic paths under the influence of

Choose an answer

magnetic field

electric field

electromagnetic field

gravitational field

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

Choose an answer

Force

Energy

work

impulse

The expression F x t is called impulse if the time 't' is

Choose an answer

zero

very large

very small

infinite

At the top of the trajectory of a projectile the acceleration is

Choose an answer

The maximum

The minimum

Zero

g

More Classes

Other Links

ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer