The Quiz Of Three Laws Of Motion

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  • 1/10 Questions

    According to Newton's First Law, an object in motion will remain in motion unless what?

    • Gravity acts on it.
    • It is acted upon by an unbalanced force.
    • It gains mass.
    • It is observed by a person.
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About This Quiz

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 tasks. 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.

The Quiz Of Three Laws Of Motion - Quiz

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  • 2. 

    What does Newton's Third Law of Motion state?

    • Objects in motion stay in motion.

    • Force equals mass times acceleration.

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

    • An object remains at rest.

    Correct Answer
    A. 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.

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  • 3. 

    Which of Newton's laws is represented by the formula F=ma?

    • First Law of Motion

    • Second Law of Motion

    • Third Law of Motion

    • Law of Universal Gravitation

    Correct Answer
    A. Second Law of Motion
    Explanation
    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.

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  • 4. 

    What determines the acceleration of an object according to Newton's Second Law?

    • Its speed

    • Its mass and the force applied

    • Its direction

    • Its density

    Correct Answer
    A. Its mass and the force applied
    Explanation
    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.

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  • 5. 

    If a ball is rolled on the ground, which force eventually stops it?

    • Gravity

    • Friction

    • Magnetic force

    • Centripetal force

    Correct Answer
    A. Friction
    Explanation
    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.

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  • 6. 

    If a 5 kg object is accelerated at 3 m/s², what is the force acting on it?

    • 8 N

    • 10 N

    • 15 N

    • 20 N

    Correct Answer
    A. 15 N
    Explanation
    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.

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  • 7. 

    When a rocket launches, which law explains the upward movement due to the expulsion of gases?

    • First Law of Motion

    • Second Law of Motion

    • Third Law of Motion

    • Law of Conservation of Energy

    Correct Answer
    A. Third Law of Motion
    Explanation
    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.

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  • 8. 

    Which law of motion explains why passengers lurch forward in a car when it suddenly stops?

    • First Law of Motion (Law of Inertia)

    • Second Law of Motion (Law of Acceleration)

    • Third Law of Motion (Action-Reaction)

    • 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.

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  • 9. 

    Which law explains the motion of a swimmer pushing against the water and moving forward?

    • First Law of Motion

    • Second Law of Motion

    • Archimedes' Principle

    • Third Law of Motion

    Correct Answer
    A. Third Law of Motion
    Explanation
    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.

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  • 10. 

    What is the concept of inertia most closely related to?

    • Speed

    • Volume

    • Temperature

    • Mass

    Correct Answer
    A. Mass
    Explanation
    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.

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  • Current Version
  • Sep 24, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 03, 2010
    Quiz Created by
    Codepacker
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