Newton's First Law Review

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| By Barbvanatta
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  • 1/8 Questions

    Newton's First law is also known as the law of...

    • Movement
    • Complication
    • Inertia
    • Inability
    • Equal and oopposite forces
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Newton
About This Quiz

A review of the basic concepts associated with Newton's First law such as Inertia,net Force and equilibrium

Quiz Preview

  • 2. 

    Johnny pushes with a force of 50 N to the left, Jill pushes on the car with  a force of 75 N to the right. Is the object in equilibrium?

    • Yes

    • No

    • Maybe

    Correct Answer
    A. No
    Explanation
    If the net force is not zero, The object is not in equilibrium

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  • 3. 

    If an object is in equilibrium its acceleration is _________ and its Net force is _____

    • Non-zero, non-zero

    • Zero,non-zero

    • Zero, zero

    • Non-zero,zero

    Correct Answer
    A. Zero, zero
    Explanation
    If the net force = 0 N, then the objects acceleration = 0 N. No net force = no acceleration

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  • 4. 

    Johnny pushes with a force of 50 N to the left, Jill pushes on the car with  a force of 75 N to the right. What is the net force acting on the object?

    • 125 N

    • 100 N

    • 50 N

    • 25 N

    • 0 N

    Correct Answer
    A. 25 N
    Explanation
    When fores are going in opposite directions, you subtract ( or add a negative)- FNET= 75N - 50 N

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  • 5. 

    An object in motion will _____________________ if the Net force acting on it is____

    • Stay in motion, 0 N

    • Accelerate, 0 N

    • Stay in motion,greater than 0 N

    Correct Answer
    A. Stay in motion, 0 N
    Explanation
    Newton's first law is defined as an object in motion will stay in motion if the net fore acting on it is 0N

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  • 6. 

    An object is moving at a constant velocity. If the Car requires 1000 N of force to propel it forward, What is the magnitue of the frictional force acting on the car?

    • 0 N

    • 500 N

    • 1000 N

    • 1500N

    • 1000 N

    Correct Answer
    A. 1000 N
    Explanation
    Since it is moving at a constant spee, the Net force on it )n, Which means it must be balanced by a force that is equal and opposite to the applied force

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  • 7. 

    An object is moving at a constant velocity. If the Car requires 1000 N of force to propel it forward, Is the car in equilibrium?

    • Yes

    • No

    • Maybe

    Correct Answer
    A. Yes
    Explanation
    yes, Equilibrium describes constant motion. An object moving at a constant or uniform velocity is in equilibrium

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  • 8. 

    What is the approximate weight of a 10 kg dog?

    • 1 N

    • 10 N

    • 100N

    • 1000 N

    Correct Answer
    A. 100N
    Explanation
    w=mg, w= 10kg *9.8m/s^2= 980N= 1000N

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 21, 2009
    Quiz Created by
    Barbvanatta
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