Newton's Laws of Motion Quiz

What is Newton's first law of motion?

• An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• Force equals mass times acceleration.

• For every action, there is an equal and opposite reaction.

• An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer explanation

Newton's first law of motion states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This choice correctly describes the law.

What is the formula for Newton's second law of motion?

• For every action, there is an equal and opposite reaction.

• An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• Force equals mass times acceleration.

Answer explanation

The formula for Newton's second law of motion is Force equals mass times acceleration.

According to Newton's third law of motion, what occurs for every action?

• An object in motion remains in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• Force equals mass times acceleration.

• For every action, there is an equal and opposite reaction.

• An object at rest remains at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer explanation

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

What is the significance of understanding Newton's Laws of Motion?

• To understand the behavior of light at very small scales.

• To understand the behavior of matter at very high speeds.

• To understand the behavior of motion and forces in the universe.

• To understand the behavior of sound in different mediums.

Answer explanation

Understanding Newton's Laws of Motion is significant because it helps us comprehend the behavior of motion and forces in the universe.

In which scenario do Newton's Laws of Motion apply?

• Driving a car on the highway.

• Watching a movie in a theater.

• Cooking a meal in the kitchen.

• Reading a book in a library.

Answer explanation

Newton's Laws of Motion apply when driving a car on the highway because they describe the relationship between the motion of an object and the forces acting upon it.

What is the unit of force in Newton's second law of motion?

• Kilogram

• Meter

• Newton

• Second

Answer explanation

The unit of force in Newton's second law of motion is Newton. Newton is the correct choice because it is the unit used to measure force in this law.

What does an unbalanced force cause an object to do according to Newton's first law of motion?

• Remain at rest

• Move in a straight line with constant speed

• Change its state of motion

• None of the above

Answer explanation

According to Newton's first law of motion, an unbalanced force causes an object to change its state of motion.

What is the reaction in Newton's third law of motion?

• Equal to the action

• Opposite to the action

• Both equal and opposite to the action

• None of the above

Answer explanation

According to Newton's third law of motion, the reaction is both equal and opposite to the action.

What is the effect of mass on the force according to Newton's second law of motion?

• Force decreases as mass increases.

• Force increases as mass increases.

• Force is not affected by mass.

• Force is inversely proportional to mass.

Answer explanation

According to Newton's second law of motion, force increases as mass increases.

What is the effect of acceleration on the force according to Newton's second law of motion?

• Force decreases as acceleration increases.

• Force increases as acceleration increases.

• Force is not affected by acceleration.

• Force is inversely proportional to acceleration.

Answer explanation

According to Newton's second law of motion, force increases as acceleration increases.