Force, Motion & Gravity MCQs with Answers

Which material is more elastic: steel or rubber?

• A.Steel
• B.Rubber
• C.Both are equally elastic
• D.None of these

What is the ratio between orbital velocity (vo) and escape velocity (ve)?

• A.ve = vo
• B.ve = 2 vo
• C.ve = vo / √2
• D.ve = √2 vo

Which gear exerts no load on the shaft?

• A.Spur gear
• B.Bevel gear
• C.Helical gear
• D.Worm gear

When two cubes are pressed over each other they unite to form one cube. Which of the following force is responsible for holding them together?

• A.Gravitational force
• B.Electrostatic force
• C.Van der Waals forces
• D.Magnetic force

For which scientific principle is Archimedes famous?

• A.Archimedes' Principle
• B.Newton's Law of Gravitation
• C.Pascal's Law
• D.Bernoulli's Principle

Formula of Density is:

• A.D = m/v
• B.D = v/m
• C.D = m × v
• D.D = m + v

Which one among the following is not an example of pneumatic system?

• A.Air brake in trains
• B.Dentist's drill
• C.Car brake
• D.Jackhammer

Small liquid drops assume spherical shape because ?

• A.The liquid tends to have minimum surface area due to surface tension
• B.The liquid tends to have maximum surface area due to viscosity
• C.The liquid tends to have minimum volume due to gravity
• D.The liquid tends to have maximum volume due to capillary action

If the horizontal distance (range) of a projectile is doubled, what happens to the time of flight, assuming the initial velocity and angle of projection remain the same?

• A.Remains the same
• B.Doubled
• C.Halved
• D.Becomes four times

A gas has a volume of 500 ml at 760 torr. What will be the pressure if the volume is reduced to 300 ml?

• A.1140 torr
• B.456 torr
• C.1266.67 torr
• D.1520 torr