Foundation level III NEET MOCK TEST-2 (Physics)

Complete the sentence. Friction always ____________

      

• Helps the motion

• Opposes the motion

• Both of these

• None of these

What is force?

• Pull

• Push

• Push and pull both

• None of these

Which one of these characteristics does a smooth surface has?

       

• Less frictional force

• More frictional force

• Sometimes less and sometimes more force

• All of above

Magnetic force is ______.

• Contact force

• Non-contact force

• Both a and b

• None of these

Frictional force is a __________

      

• Magnetic force

• Non-contact force

• Contact force

• None of these

How many dynes are equal to 1 N ?

• 10⁶

• 10⁴

• 10⁵

• 10⁷

What kind of substances are known as lubricants?

       

• Increase friction

• Increase or decrease friction

• Decrease friction

• None of these

Force acts on an object may change ______.

• Direction

• Shape

• Speed

• All of above

Fluid are____

      

• Gases and liquids both

• Liquids

• Gases

• None of these

On what force of friction depends?

• Smoothness of surface

• Roughness of surface

• All of these

• Nature of surface