Force and laws of motion

An object of mass 2 kg is sliding with a constant velocity of 4 m s^–1 on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

• 32 N

• 0 N

• 10 N

• 2 N

If a man jumps out from a boat, the boat moves

• forward

• sidewards

• backwards

• downwards

Rockets work on the principle of Newton's

• first law

• second law

• third law

• none of these

In any collision_______ is always constant

• Total momentum

• total force

• total speed

• total displacement

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Friction and gravity are both examples of a force.

• True
• False

What is Newton's First Law known as? The Law of

• Friction
• Mass
• Inertia
• Gravity

"For every action, there is an equal and opposite reaction."

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Force = Mass x Acceleration

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law