Newton's Laws of Motion

What is Newton's first law of motion?

• An object in motion will remain in motion, and an object at rest will remain at rest, unless acted upon by a force.

• Net force is equal to mass times acceleration.

• For every action, there's an equal but opposite reaction.

• The force of gravity is equal to the mass of an object times the acceleration due to gravity.

What is the equation for net force?

• F(net) = ma

• F(net) = mg

• F(net) = mv

• F(net) = ms

What is equilibrium?

• An object that is not moving.

• An object that is moving at a constant velocity.

• An object that is accelerating.

• An object that is experiencing a net force.

What is the normal force?

• The force of gravity on an object.

• The force exerted by a surface perpendicular to an object.

• The force exerted by an object on another object.

• The force exerted by a moving object.

What is the equation for the force of gravity?

• F(g) = ma

• F(g) = mg

• F(g) = mv

• F(g) = ms

What is the force that keeps objects from falling through a surface?

• Gravity

• Friction

• Normal force

• Tension force

What is Newton's third law of motion?

• An object in motion will remain in motion, and an object at rest will remain at rest, unless acted upon by a force.

• Net force is equal to mass times acceleration.

• For every action, there's an equal but opposite reaction.

• The force of gravity is equal to the mass of an object times the acceleration due to gravity.

What is the force that allows a reindeer to pull a sleigh?

• Gravity

• Friction

• Normal force

• Tension force

What is the net force on a box sitting on the ground?

• 0

• Gravity

• Friction

• Tension force

What is the net force on an elevator with a counterweight?

• 0

• Gravity

• Friction

• Tension force