Question # 1

A rotating body tends to be slower, when its angular acceleration is:

Choose an answer

Positive

Negative

Zero

Infinity

Direction of motion_______ in circular of motion:

Choose an answer

Changes off and on

Changes continuously

Does not change

None of them

Satellites are held in orbits around Earth by its:

Choose an answer

Gravitational field

Magnetic field

Own orbital motion

Own spin motion

Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.

Choose an answer

Greater than

smaller than

Equal to

None of these

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

Choose an answer

Zero

Its average velocity

Its angular displacement

None of these

A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is

Choose an answer

0.05 m

0.08 cm

0.8 m

0.008 m

The useful unit of angular replacement in SI unit is:

Choose an answer

Degree

Revolution

Radian

Metre

One radian is:

Choose an answer

Greater than one degree

Less than one degree

Equal to one degree

None of them

A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec²in this case, find radius of the circular path:

Choose an answer

1 m

5 m

10 m

15 m

Circular motion is an example of motion in:

Choose an answer

One dimension

Two dimensions

Three dimensions

None of these

The instantaneous acceleration of a body moving with constant speed in a circle:

Choose an answer

Remains constant

Is called centripetal acceleration

Tangential acceleration

None of these

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

Choose an answer

49 rad/sec²

1 rad/sec²

0.16 rev/sec²

Both A and C

Both B and C

Which of the following pairs does not have identical dimensions?

Choose an answer

Torque and energy

Energy and work

Momentum and impulse

Mass and moment of inertia

One radian is:

Choose an answer

Greater than one degree

Less than one degree

Equal to degree

none of these

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec^-2comes out to:

Choose an answer

980 N

580 N

1380 N

Zero

Angular velocity is a:

Choose an answer

Scalar quantity

Vector quantity

Complex quantity

None of these

More Classes

Other Links

Physics ECAT Pre Engineering Chapter 5 Circular Motion 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