Newton's Laws Quiz

What is Newton's first law of motion?

• An object at rest will stay at rest, and an object in motion will stay in motion at constant velocity unless acted upon by an unbalanced force.

• An object acted upon by an unbalanced force will accelerate in the direction of the force.

• The total momentum of a group of objects stays the same unless outside forces act on the objects “including friction.”

What is Newton's second law of motion?

• An object at rest will stay at rest, and an object in motion will stay in motion at constant velocity unless acted upon by an unbalanced force.

• An object acted upon by an unbalanced force will accelerate in the direction of the force.

• The total momentum of a group of objects stays the same unless outside forces act on the objects “including friction.”

What is inertia?

• It is the universal Gravitational force.

• The tendency of an object to resist changes in its state of motion.

• It is a force against motion of an object.

Which of the following has more inertia?

• Bowling ball

• Tennis ball

• Hammer

• Feather

What does the variable (a ) in the equation F = ma mean?

What does the variable (F) in the equation F = ma mean?

What does the variable (m) in the equation F = ma mean?

How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s²?

• 100 N

• 3000 N

• 3000 kg

• 100 kg

If a 70-kg swimmer pushes off a pool wall with a force of 250 N, what is her acceleration?

• 0.28 m/s²

• 3.6 m/s²

• 280 N

• 28 Kg

Find the mass of a football player who has 1250 N of force and has an acceleration of 1.5 m/s².

• 833 N

• 1875 kg

• 833 kg

• 18.75 m/s²