The Quiz Of Three Laws Of Motion
The Three Laws of Motion Quiz is designed to test your understanding of Newton's fundamental principles that explain the behavior of objects under various forces. This quiz covers Newton's First Law (Law of Inertia), Second Law (Law of Acceleration), and Third Law (Law of Action-Reaction), each providing a unique perspective on how motion works in the physical world.
With carefully crafted questions, this quiz will challenge both students and physics enthusiasts to apply these laws to real-world scenarios, such as car safety, rocket launches, and sports dynamics. It encourages critical thinking by including both conceptual questions and practical problem-solving Read moretasks. By taking the Three Laws of Motion Quiz, you’ll not only gauge your knowledge but also deepen your appreciation for Newton's contributions to physics and their continued relevance in science, engineering, and everyday life.
Three Laws Of Motion Questions and Answers
- 1.
Which law of motion explains why passengers lurch forward in a car when it suddenly stops?
- A.
First Law of Motion (Law of Inertia)
- B.
Second Law of Motion (Law of Acceleration)
- C.
Third Law of Motion (Action-Reaction)
- D.
Law of Gravitation
Correct Answer
A. First Law of Motion (Law of Inertia)Explanation
The answer is the First Law of Motion (Law of Inertia). This law explains that objects in motion will continue moving in the same direction and at the same speed unless acted upon by an external force. In a car that suddenly stops, passengers move forward because their bodies are still in motion. The seatbelt or the dashboard provides the external force that changes their state of motion.Rate this question:
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- 2.
According to Newton's First Law, an object in motion will remain in motion unless what?
- A.
Gravity acts on it.
- B.
It is acted upon by an unbalanced force.
- C.
It gains mass.
- D.
It is observed by a person.
Correct Answer
B. It is acted upon by an unbalanced force.Explanation
The answer is "It is acted upon by an unbalanced force." Newton's First Law states that an object will remain at rest or move in a straight line at a constant speed unless an external force acts on it. For example, a soccer ball will keep moving unless forces like friction or a player's foot stop it.Rate this question:
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- 3.
Which of Newton's laws is represented by the formula F=ma?
- A.
First Law of Motion
- B.
Second Law of Motion
- C.
Third Law of Motion
- D.
Law of Universal Gravitation
Correct Answer
B. Second Law of MotionExplanation
The answer is the Second Law of Motion. Newton's Second Law is represented by the formula F=ma, where F is force, m is mass, and a is acceleration. This law provides a quantitative relationship between the force acting on an object and its acceleration, showing that the acceleration is directly proportional to the force and inversely proportional to the mass.Rate this question:
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- 4.
What does Newton's Third Law of Motion state?
- A.
Objects in motion stay in motion.
- B.
Force equals mass times acceleration.
- C.
For every action, there is an equal and opposite reaction.
- D.
An object remains at rest.
Correct Answer
C. For every action, there is an equal and opposite reaction.Explanation
The answer is "For every action, there is an equal and opposite reaction." Newton's Third Law of Motion explains that forces always occur in pairs. When one object exerts a force on another, the second object exerts an equal and opposite force back on the first. This principle is evident in activities like jumping off a boat onto a dock, where the force that pushes the person forward also pushes the boat backward.Rate this question:
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- 5.
When a rocket launches, which law explains the upward movement due to the expulsion of gases?
- A.
First Law of Motion
- B.
Second Law of Motion
- C.
Third Law of Motion
- D.
Law of Conservation of Energy
Correct Answer
C. Third Law of MotionExplanation
The answer is the Third Law of Motion. When a rocket expels gases downward, it generates an upward force that propels the rocket into space. This action-reaction pair follows Newton's Third Law: the action of expelling gases downward results in a reactionary force that pushes the rocket upward, enabling space travel and launching satellites.Rate this question:
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- 6.
If a ball is rolled on the ground, which force eventually stops it?
- A.
Gravity
- B.
Friction
- C.
Magnetic force
- D.
Centripetal force
Correct Answer
B. FrictionExplanation
The answer is "Friction." When a ball is rolled on the ground, it eventually stops due to the force of friction acting opposite to the ball's direction of motion. Friction is a resistive force that opposes the relative motion between two surfaces in contact, such as the ball and the ground.Rate this question:
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- 7.
What is the concept of inertia most closely related to?
- A.
Speed
- B.
Volume
- C.
Temperature
- D.
Mass
Correct Answer
D. MassExplanation
The answer is "Mass." Inertia, the tendency of an object to resist changes in its state of motion, is directly related to the mass of the object. The greater the mass, the greater the inertia, meaning more force is needed to change the object's state of rest or motion.Rate this question:
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- 8.
If a 5 kg object is accelerated at 3 m/s², what is the force acting on it?
- A.
8 N
- B.
10 N
- C.
15 N
- D.
20 N
Correct Answer
C. 15 NExplanation
The answer is "15 N." According to Newton's Second Law, force can be calculated using the formula F=ma. For an object with a mass of 5 kg and an acceleration of 3 m/s², the force is F=5 kg×3 m/s2=15N.Rate this question:
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- 9.
Which law explains the motion of a swimmer pushing against the water and moving forward?
- A.
First Law of Motion
- B.
Second Law of Motion
- C.
Archimedes' Principle
- D.
Third Law of Motion
Correct Answer
D. Third Law of MotionExplanation
The answer is the Third Law of Motion. When a swimmer pushes against the water, the water pushes back with an equal and opposite force, propelling the swimmer forward. This action-reaction force pair is essential for understanding movement in fluids like water.Rate this question:
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- 10.
What determines the acceleration of an object according to Newton's Second Law?
- A.
Its speed
- B.
Its mass and the force applied
- C.
Its direction
- D.
Its density
Correct Answer
B. Its mass and the force appliedExplanation
The answer is "Its mass and the force applied." Newton's Second Law states that the acceleration of an object depends on the net force acting upon it and its mass. If more force is applied to an object, it accelerates more; if the object has more mass, it accelerates less for the same amount of force.Rate this question:
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Current Version
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Sep 24, 2024Quiz Edited by
ProProfs Editorial Team -
Jun 03, 2010Quiz Created by
Codepacker
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