Force, Motion & Gravity MCQs with Answers

Efficiency of a machine is not 100% because of?

• A.Magnetism
• B.Gravity
• C.Friction
• D.Inertia

Displacement is an example of a quantity

• A.Scalar
• B.Fundamental
• C.Dimensionless
• D.Vector

If the mass of a pendulum is doubled, its time period _.

• A.Doubles
• B.Becomes half
• C.Remains same
• D.Becomes four times

Which statement is true for limiting frictional force?

• A.It is the maximum frictional force that opposes the motion of a body at rest
• B.It is directly proportional to the normal reaction between the surfaces in contact
• C.It is independent of the area of contact between the surfaces
• D.All of these

The point at which an applied force produces linear motion but no rotatory motion is _?

• A.Center of gravity
• B.Center of mass
• C.Center of buoyancy
• D.Center of pressure

A man moves 5 cm north, then 4 cm east, and finally 5 cm south. What is the ratio of his displacement to the total distance travelled?

• A.1:7
• B.4:14
• C.2:7
• D.4:7

A body is projected with the same velocity at angles 35°, 70°, 60°, and 20° from the horizontal. The maximum range will be at _?

• A.35°
• B.70°
• C.60°
• D.20°

An _ is a slanting surface connecting a lower level to a higher level.

• A.Wedge
• B.Lever
• C.Pulley
• D.Inclined Plane

If our circle has 4 m radius and had covered the distance of 14 m on the circumference of a circle. Find the displacement.

• A.7.86 m
• B.8.00 m
• C.5.66 m
• D.6.28 m

If a body moves for 10 seconds with a speed of 30 m/s, then its distance covered is ?

• A.300 m
• B.30 m
• C.3 m
• D.3000 m