Force and Motion Quiz

What is the force that opposes the motion of an object?

• inertia

• gravity

• friction

• velocity

According to Newton's first law of motion, an object at rest will stay at rest unless acted upon by what?

• gravity

• internal force

• external force

• friction

What is the force that pulls objects towards the center of the Earth?

• friction

• repulsion

• gravity

• magnetism

According to Newton's second law of motion, what is the relationship between force, mass, and acceleration?

• Force is directly proportional to mass and acceleration

• Force is inversely proportional to mass and acceleration

• Force is directly proportional to mass but inversely proportional to acceleration

• Force is directly proportional to acceleration but inversely proportional to mass

What is the force that occurs when one object rubs against another?

• inertia

• momentum

• gravity

• friction

According to Newton's third law of motion, for every action, there is an equal and opposite what?

• reaction

• random reaction

• inaction

• unequal reaction

What is the force that occurs when a rope or string is pulled tight?

• Friction

• Tension

• Gravity

• Compression

An object in motion will stay in motion unless acted upon by an external what?

• force

• velocity

• friction

• gravity

What is the force that is applied to an object by a person or another object?

• applied force

• nonexistent force

• invisible force

• imaginary force

According to Newton's third law of motion, if you push on a wall, the wall pushes back with an equal and opposite what?

• velocity

• force

• energy

• acceleration