Force, Motion & Gravity MCQs with Answers

Oil is?

• A.Compressible
• B.Incompressible
• C.Highly elastic
• D.None of these

What causes a liquid drop to contract and occupy the minimum possible area?

• A.Viscosity
• B.Surface tension
• C.Capillarity
• D.Buoyancy

If an object is dropped from a height, its initial velocity will be?

• A.Maximum
• B.Equal to final velocity
• C.Zero
• D.9.8 m/s

The particles of a solid ?

• A.Are loosely packed and expand to fill any space
• B.Move freely and are far apart from each other
• C.Slide past each other and take the shape of the container
• D.Are tightly packed together and stay in a fixed position

"The speed of light in the vacuum is the same for all observers regardless of their relative motion or the motion of the source of the light" is an important postulate of _?

• A.General theory of relativity
• B.Quantum mechanics
• C.Special theory of relativity
• D.Newtonian mechanics

Water drops are roughly spherical because of?

• A.Surface tension
• B.Viscosity
• C.Gravity
• D.Capillary action

The specific gravity of water is taken as?

• A.0
• B.1
• C.10
• D.100

Which of the following is an example of compound machine?

• A.Pulley
• B.Lever
• C.Scissors
• D.Inclined plane

The density of body depends on?

• A.Mass only
• B.Volume only
• C.Both Mass and Volume
• D.Neither Mass nor Volume

If average pressure is 50 psi, the absolute pressure is?

• A.64.7 psi
• B.35.3 psi
• C.50 psi
• D.14.7 psi