Motion & Newton's Laws

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

• Skater 1 experiences a greater change in momentum

• Skater 2 experiences a greater change in momentum

• Skater 1 has a greater velocity than Skater 2

• Skater 1 experiences a greater force

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

• car

• bike

• they are equal

• cannot determine using the info provided

In any collision (crash) the ______ is ALWAYS constant

• Total Momentum

• total speed

• total Velocity

• Energy

Which object listed below has the greatest momentum?

• A 0.05 kg object rolling at 0.2 m/s.

• A 0.15 kg object rolling at 2 m/s.

• A 0.15 kg object rolling at 1 m/s

• A 0.4 kg object rolling at 2 m/s.

 

The Law of Conservation of Momentum states:

• The total momentum before a collision is equal to the total momentum after a collision.

• The total momentum before a collision is greater than the total momentum after a collision.

• The total momentum before a collision is less than the total momentum after a collision.

• The total momentum before a collision is not related to the total momentum after a collision.

According to Newton's Laws, for every action there is an ....

• equal and parallel reaction.

• equal and opposite reaction.

• unequal and opposite reaction.

• unequal and unrelated reaction.

If net force acting on object is 0, then the force is considered to be..

• balanced

• unbalanced

• equal in direction

• distance / time

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

• Friction

• Mass

• Inertia

• Gravity

The definition of momentum is

• The size of an object

• The velocity of an object

• Mass in Motion

• A comparison between two objects

Which type of force(s) will cause a change in an object's motion?

• gravity

• zero net force

• balanced forces

• unbalanced forces