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Forces & Newton's Laws

Quiz by Liliana Hernandez

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10 questions
Show answers
  • Q1
    The illustration to the right shows a student about to throw a ball while standing on a skateboard. Which illustration below correctly shows the skateboard’s direction of motion after the student releases the ball?
    Question Image
    D
    B
    C
    A
    30s
  • Q2
    A truck is rolling towards a brick wall as shown in the diagram to the right. What is most likely to happen to the crate in the back of the truck when the truck strikes the wall?
    Question Image
    The crate falls off of the back of the truck.
    The crate continues moving forward until it hits something.
    The crate is pulled downward into the truck.
    The force of gravity causes the crate to move upward.
    30s
  • Q3
    After shooting a cannonball, a cannon recoils with a much lower velocity than the cannonball. This is primarily because, compared to the cannonball, the cannon has a —
    smaller force applied to it
    smaller amount of momentum
    much greater mass
    greater kinetic energy
    30s
  • Q4
    A toy car sits motionless on a track. One student begins pushing the car to the right with a force of 6 newtons. At the same time, another student begins pushing the car to the left with a force of 3 newtons. Which of the following best describes the resulting motion of the toy car?
    Question Image
    It travels left at a constant speed.
    It travels left at an increasing speed.
    It travels left at an increasing speed.
    It travels right at an increasing speed.
    30s
  • Q5
    Which of these is the best description of the action-reaction force pair when the space shuttle lifts off from the launchpad?
    The ground pushes the rocket up while exhaust gases push down on the ground.
    Gravity pulls the rocket exhaust down while friction pushes up against the atmosphere
    Exhaust gases push down on air while the air pushes up on the rocket.
    The rocket pushes exhaust gases down while the exhaust gases push the rocket up.
    30s
  • Q6
    When the air is released from a balloon, the air moves in one direction, and the balloon moves in another direction. Which statement does this situation best illustrate?
    The acceleration due to Earth’s gravity is 9.8 m/s2.
    The shape and size of an object affects air resistance.
    What goes up must come down.
    For every action there is an equal and opposite reaction.
    30s
  • Q7
    Seat belts in cars help prevent passenger injuries that would otherwise occur when a car came to an abrupt stop during a traffic accident. Which of these statements best explains why seat belts in cars are so important for passenger safety?
    An object at rest does not contain kinetic energy.
    Applying a constant force on an object will cause its speed to increase.
    An object in motion will stay in motion unless acted on by a net force.
    The acceleration due to Earth’s gravity is 9.8 m/s2.
    30s
  • Q8
    Students filled 4 different boxes with different objects. Each student pushes the boxes with the same amount of force. Which box has the greatest change in speed?
    Question Image
    A
    B
    D
    C
    30s
  • Q9
    According to Newton’s laws of motion, when two continental plates meet and push on one another, the smaller of the two plates will push back on the larger plate with a force that is -
    greater than the larger plate and in the same direction.
    equal in size to the force of the larger plate and in the same direction.
    less than the larger plate but in the opposite direction.
    equal in size to the force of the larger plate but opposite in direction.
    30s
  • Q10
    The table shows times required for the same toy car to travel 10 m across an identical section of a floor after it is pushed. The difference in times was probably caused by differences in —
    Question Image
    applied force
    air resistance
    car mass
    surface friction
    30s

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