Newton's Laws

Newton’s first law of motion is also called the law of

• Mass

• Inertia

• Velocity

• Unbalanced force

Once an applied force causes an object to start moving, the object will keep moving unless

• the force continues to be applied to it.

• an unbalanced force acts upon it.

• it has inertia.

• it has mass.

If you run into a curb on your bike, you might fly forward over the handlebars because of

• air resistance

• inertia

• friction

• gravity

Newton’s first law relates motion to balanced and unbalanced forces.

• True

• False

An object with greater mass has greater inertia.

• True

• False

Balanced forces are needed to change an object’s motion.

• True

• False

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.

What is the definition of "weight"?

• the force in which gravity pulls on an object
• the time it takes to get on a ride 
• the amount of matter in an object
• the size of an object

A rollercoaster heading down a hill is _____________.

• at rest

• slowing down

• accelerating

• velocity

Newton's 3rd Law states that for ever action there is an equal and opposite ________.

• reaction

• satisfaction

• fraction

• transaction