Year 7 Forces And Magnet Test - Mr. Hung

20 Questions
Year 7 Forces And Magnet Test - Mr. Hung

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Questions and Answers
  • 1. 
    Forces can _______________ an object.
    • A. 

      Stop the motion of

    • B. 

      Change the mass of

    • C. 

      Change the smell of

    • D. 

      Change the colour of

  • 2. 
    Which of the following is NOT a type of force?
    • A. 

      Gravitational

    • B. 

      Magnetic

    • C. 

      Heat

    • D. 

      Weight

  • 3. 
    What is the SI unit of force?
    • A. 

      Kilogram

    • B. 

      Centimetre

    • C. 

      Joules

    • D. 

      Newton

  • 4. 
    Which of the following action involves a push and a pull?
    • A. 

      Dragging a chair

    • B. 

      Punching a punching bag

    • C. 

      Lifting a box

    • D. 

      Turning a steering wheel

  • 5. 
    It would probably be easiest to ride a bicycle across
    • A. 

      Gravel

    • B. 

      Sand

    • C. 

      Grass

    • D. 

      Concrete road

  • 6. 
    The force that always acts opposite to the direction of the motion of an object is called
    • A. 

      Reaction

    • B. 

      Inertia

    • C. 

      Friction

    • D. 

      Lift

  • 7. 
    Which is NOT a force?
    • A. 

      Mass

    • B. 

      Weight

    • C. 

      Gravity

    • D. 

      Air resistance

  • 8. 
    The following helps to reduce the friction when moving a cabinet EXCEPT
    • A. 

      Moving on a rough surface

    • B. 

      Putting lubricant on the surface

    • C. 

      Removing the content in the cabinet

    • D. 

      Placing wheels for the cabinet

  • 9. 
    The amount of force exerted on an object due to gravity is the
    • A. 

      Mass

    • B. 

      Weight

    • C. 

      Upthrust

    • D. 

      Inertia

  • 10. 
    Which of the following is a contact force?
    • A. 

      Static electricity

    • B. 

      Air resistance

    • C. 

      Magnetic force

    • D. 

      Gravity

  • 11. 
    The amount of matter in an object is the
    • A. 

      Weight

    • B. 

      Gravity

    • C. 

      Mass

    • D. 

      Load

  • 12. 
    The tendency of an object to remain at rest if at rest or to continue moving in a straight line if in motion is called
    • A. 

      Friction

    • B. 

      Inertia

    • C. 

      Force

    • D. 

      Acceleration

  • 13. 
    Your weight changes on different planets. Which is the most important factor?
    • A. 

      The distance away from the Sun

    • B. 

      The size of the planet

    • C. 

      The density of the planet

    • D. 

      The magnetic effect of the planet

  • 14. 
    Which of the following metals is NOT magnetic?
    • A. 

      Iron

    • B. 

      Cobalt

    • C. 

      Aluminium

    • D. 

      Nickel

  • 15. 
    What is a magnetic field?
    • A. 

      An object that loses its magnetism after a short time.

    • B. 

      A magnet's ability to attract certain metals.

    • C. 

      The space around a magnet where the force of a magnet can act.

    • D. 

      The areas of a magnet where its force of attraction is strongest.

  • 16. 
    In a bar magnet, the strongest magnetic force is
    • A. 

      In the middle

    • B. 

      At the North pole

    • C. 

      At the South pole

    • D. 

      At both poles

  • 17. 
    You can magnetise a nail by
    • A. 

      Stroking the nail with a magnet in one direction for 30 times

    • B. 

      Heating the nail for 2 minutes

    • C. 

      Moving the nail to and fro on the bar magnet

    • D. 

      Using a sand paper to polish the nail

  • 18. 
    Which of the following is CORRECT?
    • A. 

      North pole attracts north pole

    • B. 

      South pole attracts north pole

    • C. 

      North pole repels south pole

    • D. 

      South pole attracts south pole

  • 19. 
    What is the term used to represent the micro-magnets in a magnetic substance?
    • A. 

      Domino

    • B. 

      Domains

    • C. 

      Remains

    • D. 

      Magnetlets

  • 20. 
    The following set up is used to build
    • A. 

      Heated nail

    • B. 

      Magnetic coils

    • C. 

      An electromagnet nial

    • D. 

      A permanent magnetic nail