Force, Motion & Gravity MCQs with Answers

Which one is a vector quantity?

• A.Mass
• B.Time
• C.Speed
• D.Weight

According to kinetic molecular theory, the pressure exerted by a gas is caused by the _?

• A.Continuous collision of gas molecules with the walls of the container
• B.Mutual repulsion between gas molecules
• C.Weight of the gas molecules
• D.Attraction between gas molecules and the container walls

A man throws a ball vertically upwards in a compartment of an accelerated train. The ball will fall _?

• A.In his hand
• B.Behind him
• C.In front of him
• D.Outside the train

Of the following situations, which one is impossible?

• A.A body having constant velocity and variable acceleration
• B.A body having constant speed and variable velocity
• C.A body having constant acceleration and variable velocity
• D.A body having zero velocity and non-zero acceleration

Mass per unit volume is called?

• A.Viscosity
• B.Pressure
• C.Specific gravity
• D.Density

According to Pascal's principle, the pressure applied at a point in an enclosed is transmitted equally in all directions?

• A.Solid
• B.Fluid
• C.Gas only
• D.Vacuum

Pressure is defined as ?

• A.Force per unit area
• B.Mass per unit volume
• C.Force per unit volume
• D.Work per unit time

At what angle does the scalar product between two vectors become half of its maximum value?

• A.30°
• B.45°
• C.60°
• D.90°

A train of length 100 m is crossing a bridge 200 m in length, at the speed of 15 m/s. What is the time taken by the train to cross the bridge?

• A.10 sec
• B.15 sec
• C.20 sec
• D.25 sec

Two spheres of the same size, one of mass 5 kg and other of mass 50 g are dropped simultaneously from a tower. When they are about to touch the ground, they have the same?

• A.Momentum
• B.Kinetic Energy
• C.Acceleration
• D.Potential Energy