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Balanced and unbalanced forces on motion

Quiz by Claudia Barnhill

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16 questions
Show answers
  • Q1
    What is an unbalanced force?
    A force that stops motion completely
    A force that does not cause any motion
    A force that only affects stationary objects
    A force that causes a change in motion
    30s
  • Q2
    What is a balanced force?
    A force that stops motion completely
    A force that only affects stationary objects
    A force that causes a change in motion
    Two or more forces that cancel each other out and do not cause a change in motion
    30s
  • Q3
    What is the relationship between a balanced force and an unbalanced force?
    A balanced force and an unbalanced force both cause a change in motion.
    A balanced force and an unbalanced force always have the same magnitude.
    A balanced force and an unbalanced force always have opposite directions.
    A balanced force does not cause a change in motion, while an unbalanced force does.
    A balanced force and an unbalanced force have no relationship.
    30s
  • Q4
    What is the net force when two balanced forces act in the same direction?
    The net force is zero.
    The net force is the sum of the two forces.
    The net force is the difference between the two forces.
    The net force is twice the magnitude of one of the forces.
    The net force is the average of the two forces.
    30s
  • Q5
    Which of the following statements is true about balanced and unbalanced forces?
    Unbalanced forces cancel each other out.
    Balanced forces only affect stationary objects.
    Balanced forces result in no change in motion.
    Unbalanced forces lead to motion in a straight line.
    Balanced forces always cause a change in motion.
    30s
  • Q6
    What happens to an object when the forces acting on it are balanced?
    The object accelerates in the direction of the net force.
    The object immediately comes to a complete stop.
    The object starts moving in the opposite direction of the net force.
    The object spins around uncontrollably.
    The object remains at rest or continues moving at a constant speed in a straight line.
    30s
  • Q7
    What happens to an object when the forces acting on it are unbalanced?
    The object starts moving in the opposite direction.
    The object remains at rest or continues moving at a constant speed.
    The object experiences a change in motion.
    The object immediately comes to a complete stop.
    The object spins in a circular motion.
    30s
  • Q8
    What is the result of applying balanced forces to an object?
    Decreased speed of the object
    Complete stop of the object
    Change in direction of the object
    No change in motion
    Increased speed of the object
    30s
  • Q9
    Which of the following statements is true about unbalanced forces?
    Unbalanced forces cause a change in motion.
    Unbalanced forces always result in no motion.
    Unbalanced forces have the same effect as balanced forces.
    Unbalanced forces only affect stationary objects.
    Unbalanced forces cancel each other out.
    30s
  • Q10
    What is the net force when two unbalanced forces act in opposite directions?
    The net force is the sum of the two forces.
    The net force is the difference between the two forces.
    The net force is the average of the two forces.
    The net force is zero.
    The net force is twice the magnitude of one of the forces.
    30s
  • Q11
    The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity. The pickup truck has a changing velocity because the pickup truck---
    can accelerate faster than the other two vehicles
    needs a large amount of force to move
    is traveling in the opposite direction from the other two vehicles
    is traveling on a curve in the road
    30s
  • Q12
    Which of the following best describes the velocity of an object?
    30 m/s^2
    30 m east
    30 m/s east
    30 m/s
    30s
  • Q13
    A meteor moving 468 km per minute traveling in a south-to-north direction passed near Earth in 2013. Because the meteor was only 45 m wide and was 27,700 km above Earth’s surface, it was not visible without the aid of a telescope. Which statement describes the meteor’s motion?
    Its velocity was 7.8 km/s northward
    Its speed was 468 km/s northward.
    Its acceleration was 468 km/s^2
    Its acceleration was 7.8 km/s^2
    30s
  • Q14
    What is the difference between the velocity and the speed of an object?
    Velocity is the change in distance over time, while speed is the change in velocity over time.
    Velocity is the change in speed over time, while speed is the change in distance over time.
    Velocity has a direction associated with it, while speed has no specific direction
    Velocity has no direction associated with it, while speed has a specific direction.
    30s
  • Q15
    Acceleration is the rate of chance of velocity or a change in motion.
    True
    False
    30s

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