6th Grade Science Chapter 9 Forces

59 Questions | Total Attempts: 804

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6th Grade Science Quizzes & Trivia

Questions and Answers
  • 1. 
    A force is simply a [Blank] or [Blank].
  • 2. 
    A force is described by its [Blank] (size) and [Blank].
  • 3. 
    Anytime you see a change in an object's motion, you can be sure that the change in motion was created by a [Blank].
  • 4. 
    Scientists express force by using a unit called the:
    • A. 

      Joule (J)

    • B. 

      Newton (N)

    • C. 

      Kg/m

    • D. 

      Pound (lb)

  • 5. 
    All of these are examples of contact forces EXCEPT:
    • A. 

      Friction

    • B. 

      Buoyant force

    • C. 

      Gravity

    • D. 

      Tension

  • 6. 
    When the buoyant force pushing up on an object is equal to the force of gravity pushing down on the object, the object will sink.
    • A. 

      True

    • B. 

      False

  • 7. 
    If the force of gravity on the object is less than the buoyant force pushing up on the object, the object will sink.
    • A. 

      True

    • B. 

      False

  • 8. 
    Friction happens only between objects that are touching.
    • A. 

      True

    • B. 

      False

  • 9. 
    The amount of friction between two surfaces depends on two main factors. One is how [Blank] the surfaces are that are in contact. The other factor is the [Blank] pushing the surfaces together.
  • 10. 
    When a force is applied to an object but doesn't cause the object to move, [Blank] friction occurs. This is a potential friction.
  • 11. 
    What are the two types of kinetic friction?
    • A. 

      Static and potential

    • B. 

      Tension and sliding

    • C. 

      Rolling and distant

    • D. 

      Sliding and rolling

  • 12. 
    Anything that has wheels uses [Blank] kinetic friction.
  • 13. 
    Friction can be reduced by using/applying lubricants such as motor oil, grease, or wax.
    • A. 

      True

    • B. 

      False

  • 14. 
    Friction can be reduced by switching from rolling friction (wheels) to sliding friction.
    • A. 

      True

    • B. 

      False

  • 15. 
    [Blank] are substances that are applied to surfaces to reduce the friction between the surfaces.
  • 16. 
    One way to increase friction is to make surfaces smoother.
    • A. 

      True

    • B. 

      False

  • 17. 
    [Blank] is a force of attraction between objects that is due to their masses.
  • 18. 
    The Law of Universal Gravitation states that all objects in the universe attract each other through gravitational force.
    • A. 

      True

    • B. 

      False

  • 19. 
    The size of the gravitational force depends on the ___________ of the objects and the ____________________ the objects.
    • A. 

      Distance, size of

    • B. 

      Masses, distance between

    • C. 

      Weight, distance between

    • D. 

      Distance, pull of

  • 20. 
    Gravitational force increases as mass increases.
    • A. 

      True

    • B. 

      False

  • 21. 
    The gravitational force is large between objects that have small masses.
    • A. 

      True

    • B. 

      False

  • 22. 
    The gravitational force is large when the mass of one or both objects is large.
    • A. 

      True

    • B. 

      False

  • 23. 
    Gravitational force increases as distance increases.
    • A. 

      True

    • B. 

      False

  • 24. 
    The gravitational force is strong when the distance between two objects is small.
    • A. 

      True

    • B. 

      False

  • 25. 
    If the distance between two objects increases, the gravitational force pulling them together increases.
    • A. 

      True

    • B. 

      False

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