Force and Motion Quiz

What is the force that opposes the motion of an object when it comes in contact with another object?

• Friction

• Acceleration

• Gravity

• Magnetism

Which of the following is not a type of force: a) Gravitational force b) Magnetic force c) Frictional force d) Sound force

• c

• d

• b

• a

According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by a(n) ________ force.

• external

• invisible

• eternal

• internal

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

• electromagnetism

• centrifugal force

• magnetism

• gravity

Which of the following is an example of a non-contact force: a) Pushing a car b) Pulling a rope c) Magnetic force d) Frictional force

• a) Pushing a car

• c) Magnetic force

• b) Pulling a rope

• d) Frictional force

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its ________.

• mass

• volume

• velocity

• density

What is the force that opposes the motion of an object through a fluid?

• drag

• thrust

• lift

• friction

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

• motion

• force

• energy

• reaction

What is the product of an object's mass and its velocity?

• Acceleration

• Energy

• Force

• Momentum

According to the law of conservation of momentum, the total momentum of a closed system is ________.

• increasing

• random

• constant

• decreasing