Force & Motion
3 years ago
markcorson
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40 QuestionsShow answers
  • Question 1
    300 seconds
    Q. Which of the following is an example of acceleration?
    answer choices
    A car stopped at a red light
    a truck traveling 65 mph north
    a person jogging at 3 meters/second along a winding path
    a boat sailing south at 5 knots
  • Question 2
    300 seconds
    Q. If an object is not moving, what must happen for it to start moving?
    answer choices
    An outside force must act upon it
    The mass of the object must be increased
    The weight of the object must be decreased
    All forces acting on the object must be balanced
  • Question 3
    300 seconds
    Q. The force that pulls falling objects toward Earth is called _______.
    answer choices
    air resistance
    free fall
    acceleration
    gravity
  • Question 4
    300 seconds
    Q. Which statement best describes what a machine does?
    answer choices
    A machine makes work easier
    A machine increases the amount of work done
    A machine decreases the amount of work done
    A machine increases both the force and distance involved in work
  • Question 5
    300 seconds
    Q. An object’s gravitational force depends primarily on the object’s _______.
    answer choices
    density
    momentum
    mass
    volume
  • Question 6
    300 seconds
    Q. The rate at which velocity changes is called _______.   
    answer choices
    speed
    direction
    acceleration
    motion
  • Question 7
    300 seconds
    Q. The tendency of an object to resist any change in its motion is known as _______.
    answer choices
    a balanced force
    an unbalanced force
    work
    inertia
  • Question 8
    300 seconds
    Q. A ramp is an example of this type of simple machine.
    answer choices
    inclined plane
    pulley
    lever
    wedge
  • Question 9
    300 seconds
    Q. Which explains what happens to the force of gravity between two objects is the distance between them decreases?
    answer choices
    Gravity disappears
    Gravity increases
    Gravity decreases
    Gravity remains the same
  • Question 10
    300 seconds
    Q. The force you have to overcome to start an object moving is _________.
    answer choices
    rolling friction
    sliding friction
    static friction
    air resistance
  • Question 11
    300 seconds
    Q. According to Newton’s 2nd law of motion, ________.
    answer choices
    F=MV
    F=MA
    F=M/A
    S=D/T
  • Question 12
    300 seconds
    Q. Which of the following conditions must happen for a moving object to accelerate?
    answer choices
    The forces acting on an object are unbalanced
    The forces acting on an object are balanced
    A force is equal to the mass of the object
    A force changes friction into energy
  • Question 13
    300 seconds
    Q. If a moving object is NOT affected by unbalanced force, then the object will ______.
    answer choices
    change direction and slow down
    not change direction, but it will slow down
    continue moving at the same speed, but will change direction
    continue moving at the same speed and in the same direction
  • Question 14
    300 seconds
    Q. A wagon is rolling down a slight hill. What will eventually cause it to come to a stop?
    answer choices
    gravity
    friction
    inertia
    velocity
  • Question 15
    300 seconds
    Q. 90 km/hr west is an example of a car's _____.
    answer choices
    speed
    acceleration
    direction
    velocity
  • Question 16
    300 seconds
    Q. Which can occur when an object is accelerating?
    answer choices
    It slows down
    It speeds up
    It changes direction
    All of the above
  • Question 17
    300 seconds
    Q. Motion is a change in _____.
    answer choices
    position
    speed
    time
    distance
  • Question 18
    300 seconds
    Q. If you change an object’s speed or direction, you are changing its _________.
    answer choices
    force
    velocity
    momentum
    acceleration
  • Question 19
    300 seconds
    Q. What happens to an object if the forces acting upon it are unbalanced?
    answer choices
    its motion will change
    its motion will not change
    the object will come to a stop
    the net force will be zero
  • Question 20
    300 seconds
    Q. What type of friction slows down a moving bicycle?
    answer choices
    static friction
    air resistance
    sliding friction
    rolling friction
  • Question 21
    300 seconds
    Q. Speed is a measurement of how far an object moves in a given _____.
    answer choices
    direction
    time
    position
    motion
  • Question 22
    300 seconds
    Q. Which of the following forces opposes the movement of a hockey puck as it slides across the ice?
    answer choices
    momentum
    gravity
    friction
    inertia
  • Question 23
    300 seconds
    Q. Which law best explain the concept of inertia?
    answer choices
    Law of Conservation of Mass
    Newton's 1st Law
    Newton's 2nd Law
    Law of Gravity
  • Question 24
    300 seconds
    Q. All of the forces acting on moving car are balanced when the car is _______.
    answer choices
    slowing down
    accelerating
    moving at a constant speed
    all of the above
  • Question 25
    300 seconds
    Q. Darla is trying to move a heavy box into the back of a moving truck. Which of the following simple machines would help her complete this task?
    answer choices
    inclined plane
    screw
    lever
    pulley
  • Question 26
    300 seconds
    Q. Which two factors most affect the gravitational force between Earth and the moon?
    answer choices
    mass and distance
    mass and volume
    weight and distance
    volume and distance
  • Question 27
    300 seconds
    Q. In order to be _____ forces, their effects must cancel each other out and not cause change in an object's motion.
    answer choices
    balanced
    unbalanced
    normal
    strong
  • Question 28
    300 seconds
    Q. Which of the following simple machines is used to split objects?
    answer choices
    lever
    wedge
    inclined plane
    wheel and axle
  • Question 29
    300 seconds
    Q. The unit of measure for force is a _______.
    answer choices
    meter
    pound
    newton
    kilogram
  • Question 30
    300 seconds
    Q. Which of the following is NOT an example of a lever?
    answer choices
    see saw
    wheel barrow
    doorstop
    chop sticks
  • Question 31
    300 seconds
    Q. When forces are balanced, the net force is _____.
    answer choices
    greater than the sum of the forces
    zero
    negative
    greater than zero
  • Question 32
    300 seconds
    Q. Gears and a door knob are examples of a _____.
    answer choices
    pulley
    wheel and axle
    lever
    screw
  • Question 33
    300 seconds
    Q. Sam was learning how to roller-skate. He did not want to go fast. On which kind of floor surface would Sam travel the slowest?
    answer choices
    tile
    wood
    carpet
    concrete
  • Question 34
    300 seconds
    Q. What must happen to an object in order to accelerate it?
    answer choices
    a net force must be applied
    some weight must be removed
    its friction must be reduced
    it must contain momentum
  • Question 35
    300 seconds
    Q. Which of the following is certain to change as a ball accelerates?
    answer choices
    mass of the ball
    inertia of the ball
    velocity of the ball
    force acting on the ball
  • Question 36
    300 seconds
    Q. When you raise or lower a flag on a flagpole, you are using a _______.
    answer choices
    wheel & axle
    pulley
    wedge
    inclined
  • Question 37
    300 seconds
    Q. Which of the following is not an example of a screw?
    answer choices
    bottle top
    hammer
    light bulb
    screw
  • Question 38
    300 seconds
    Q. The formula for speed is _______.
    answer choices
    S= T/D
    S=D x T
    S=D+T
    S=D/T
  • Question 39
    300 seconds
    Q. In the formula F=MA, M stands for ______.
    answer choices
    matter
    momentum
    mass
    motion
  • Question 40
    300 seconds
    Q. Which law is this?
    "An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force."
    answer choices
    Newton's 1st Law
    Newton's 2nd Law
    Newton's 3rd Law
    Newton's Law of Gravity
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