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Physical Science chapter 12

Quiz by Melissa Knox

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21 questions
Show answers
  • Q1
    The law that states that every object maintains constant velocity unless acted on by an unbalanced forces is
    Newton's second law of motion
    Newton's third law of motion
    Newton's first law of motion
    the law of conservation of momentum
  • Q2
    The law that states for every action force there is an equal and opposite reaction force is
    Newton's first law of motion
    the law of conservation of momentum
    Newton's third law of motion
    Newton's second law of motion
  • Q3
    The law that states that the unbalanced force acting on an object equals the object's mass times its acceleration is
    Newton's third law of motion
    Newton's second law of motion
    the law of conservation of momentum
    Newton's first law of motion
  • Q4
    Which of the following equations is correct?
    w=g + m
  • Q5
    What is the unbalanced force that slows down a ball rolling across the floor?
    the force of gravitiy
    the force of inertia
    the force of friction
    the force of momentum
  • Q6
    If two objects with different masses and traveling with different velocities collide, what law allows you to predict the motion of the objects after the collision?
    the law of conservation of momentum
    Newton's second law
    the law of universal gravation
    Newton's third law
  • Q7
    Which object has the greatest inertia?
    a bowling ball
    a volleyball
    a tennis ball
    a beach ball
  • Q8
    A seat belts helps you when your car stops suddenly by providing a(n)
    unbalanced forward force
    balanced forward force
    balanced backward force
    unbalanced backward force
  • Q9
    What unbalanced force is needed to give a 976 kg vehicle an acceleration of 2.50 m/s2?
    390 N
    2440 lbs
    2440 N
    390 lbs
  • Q10
    If an equal force is applied to two cars of equal mass, Car A and Car B, Car A will have _____ acceleration as (than ) Car B.
    the opposite
    the same
  • Q11
    Which of the following objects exerts a gravitational force?
    a bowling ball
    all of these
    a feather
    a book
  • Q12
    When an object is in free fall, the only force acting on it is
    terminal velocity
  • Q13
    orbital motion is a combination of
    acceleration and gravity
    forward motion and free fall
    mass and friction
    weight and vertical velocity
  • Q14
    Astronauts "float" when inside an orbiting spaceship because they are
    outside Earth's gravity
    in a vacuum
    in free fall
  • Q15
    The force exerted on the racket by a hit tennis ball is the
    gravitational force
    reaction force
    action force

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