Force, Motion & Newton's Laws

A push, pull, friction or gravity are all examples of.. 

• velocity

• Newton's First Law of Motion

• momentum

• force

A force that acts on an object to slow or stop its motion

• speed

• momentum

• unbalanced forces

• gravity

The picture is an example of Newton's...

• 1st Law

• 2nd Law

• 3rd Law

A bowling ball is rolled with a certain speed and strikes a bowling pin with a force indicated by the arrow in this illustration. When the bowling ball strikes the bowling pin, the force applied by the pin to the ball -

• depends on the mass of the bowling pin.
• is equal to the force applied by the ball.
• must be zero, since the pin is not moving.
• is equal to the force of gravity on both.

According to Newton’s Law of Inertia, an object that is moving will change its motion only if what kinds of forces act on it?

• Constant forces

• Unbalanced forces

• Strong forces

• Gravitational forces

A rocket launches because of ______.

• its large mass
• an opposite reaction
• gravity
• air resistance

If both people are exerting a force of 20 N, what is the net force?

• 20 N

• 40 N

• 400 N

• 0 N

If you double the mass of an object with the same force apply on it, the acceleration will

• double
• cut in half
• the same
• zero

This force is caused by objects rubbing together.

• Gravity
• Air Resistance
• Friction
• Spinning

Pick the correct statement about forces and motion.

• For an object to move at a constant speed or accelerating it must have unbalanced forces.

• Objects moving at a constant speed have unbalanced forces while objects that are accelerating have balanced forces.

• Objects moving at a constant speed have balanced forces while objects that are accelerating have unbalanced forces.

• For an object to move at a constant speed or accelerating it must have balanced forces.