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Force

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  • A force is a __________ and _________
    Push and pull
  • When a person is sitting on a chair which force will the upward arrow represent?
    normal force
  • Is the gravity of the moon the same as the gravity on Earth?
    No
  • When pushing a refrigerator across the floor you need to overcome the force of _______?
    Friction
  • Does friction cause wear and tear of the objects?
    Yes
  • What do equal arrows on a force diagram diagram indicate?
    The strength of the forces are equal.
  • Who discovered gravity?
    Sir Isaac Newton
  • Which force does the upward arrow indicate?
    air resistance
  • look at the image and identify the force indicated by the arrow
    Air resistance/ drag
  • What will happen if the force of gravity on a boat is greater than upthrust?
    The boat will sink.
  • The engine of an aeroplane creates which force that allows the aeroplane to be in the sky?
    Thrust
  • Which force pushes objects upwards in water?
    Upthrust
  • What do we use inorder to reduce friction?
    Lubricant
  • Observe the picture and identify the force.
    Gravity
  • Which force is used when a person pushes a trolley?
    Applied force
  • Name any one non-contact force.
    gravity or magenetism
  • Can force stop moving objects?
    yes
  • Which diagram can be seen in the image?
    force diagram