Newton's Laws

Isaac Newton developed these 3 laws concerning ______________.

• Velocity.

• Mass

• Acceleration.

• Motion

What explains a quantity that has BOTH speed and direction?

• Inertia

• Force

• Speed

• Velocity

The force that prevents a ball rolling on the ground from continuing on it's path forever is...

• Friction

• Gravity

• Inertia

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations

• Newton's first law
• Newton's second law
• Newton's third law
• Conservation of momentum

Which force causes an object to speed up or slow down (accelerate or decelerate)?

• unbalanced force
• balanced force

Which of the following is the correct position - time graph for an object moving with a constant velocity?

• 
• 
• 
• 

A dictionary weighing 15 Newtons is placed on a desk.

What is the force that the desk exerts on the dictionary?

• none

• 15 N

• 1.5 N

• 150 N

Isaac Newton stated for every action there is an

_________ and _________ reaction.

• equal and same

• equal and opposite

• unequal and same

• unequal and opposite

When an unbalanced force acts on an object, the force ______________________.

• changes the motion of the object

• is cancelled by another force

• does not change the motion of an object

• is equal to the weight of the object