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Motion and Forces Test

Quiz by Hai

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20 questions
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  • Q1
    Stew studies for his exam for such a long time that he falls asleep standing up. Stew pushes straight down on the floor with 150 pounds of force due to gravity and he does not move, as he is sound asleep.
    The floor force pushes in the same direction as Stew's feet.
    The floor pushes straight up and to the right on Stew's feet.
    The floor pushes straight up on Stew's feet.
    The floor pushes down on Stew's feet.
    30s
  • Q2
    In some special cases, action forces do not have corresponding reaction forces.
    True
    False
    30s
  • Q3
    A student drops his text book out of a second story window. Why does it fall to the ground? (choose all that apply)
    There is a strong magnetic force between the book and the ground.
    the drag force of the air pulls it down
    The net force acting on the book by gravity is downward
    30s
  • Q4
    The force that holds the planets in orbit around the sun is called
    tension
    magnetic
    gravity
    friction
    30s
  • Q5
    Which of the following best describes what happens to the force of attraction if the distance between two objects is increased?
    It stays the same
    It decreases
    It increases
    It varies
    30s
  • Q6
    30s
  • Q7
    What is the unit for force
    Jules
    Speed
    Newton
    Meters
    30s
  • Q8
    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.
    Newton's Third Law
    Inertia
    Newton's Second Law
    Newton's First Law
    30s
  • Q9
    For every action there is an equal and opposite reaction
    Newton's Second Law
    Interia
    Newton's First Law
    Newton's Third Law
    30s
  • Q10
    The acceleration of an object is proportional to the force acting on it and inversely proportional to its mass. Force = mass x acceleration
    Inertia
    Newton's 2nd Law
    Newton's 1st Law
    Newton's 3rd Law
    30s
  • Q11
    the tendency of an object to resist any change in its motion
    Inertia
    Newton's Second Law
    Newton's Third Law
    30s
  • Q12
    Speed measurements are given in units of
    distance/time²
    time²/distance
    time/distance
    distance/time
    30s
  • Q13
    Measurements of acceleration are given in units of
    time/distance
    time²/distance
    distance/time
    distance/time²
    30s
  • Q14
    How many centimeters are in a kilometer?
    100,000
    1,000
    100,000,000
    100
    30s
  • Q15
    A rider finishes a 90 km bicycle trip in 3 hours. The average speed of the rider is
    270 km/hr
    30 km/hr
    180 km/hr
    .3 km/hr
    30s

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