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Unit 5.1. Gravity, normal forces and applied for ...

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  • Name the missing force....
    tension force
    normal force
    frictional force
    weight force
  • When you kick a football, what force is acting on the ball?
    Normal force
    Magnetic force
    Applied force
    Gravity only
  • A _____ is a support force.
    Normal Force
    Balanced Force
    Contact Force
    Unbalanced Force
  • What is an applied force?
    A force from a surface
    A force exerted by a person or object
    A force caused by gravity
    A force caused by air
  • Which situation shows a normal force acting?
    A book resting on a table
    A magnet attracting metal
    A ball falling through the air
    A kite flying
  • Why do objects fall down instead of up?
    Because gravity pulls them downward
    Because the ground attracts them
    Because air pushes them down
    Because objects are heavy
  • A(n) _____ is a force applied by a person or object onto another object.
    magnetic force
    normal force
    applied force
    electric force
  • ___ is the force which attracts or pulls all objects towards the Earth.
    Applied Force
    Frictional Force
    Gravity
    Normal Force
  • In a force diagram, the arrow show ___
    normal force
    friction
    gravity
  • Which is NOT an applied force?
    Pushing a cupboard
    Gravity
    Pulling a rope
    Lifting a backpack
  • If there were no gravity on Earth, what would happen to objects?
    They would stay still
    They would fall faster
    They would float away
    They would become heavier
  • The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:
    applied force
    normal force
  • What is gravity?
    A force caused by air
    A force made by machines
    A force that pushes objects upward
    A force that pulls objects toward the Earth
  • To use force to cause something to move closer.
    Pull
    Push
  • Why doesn’t a book fall through the table?
    Air holds the book up
    Gravity is weak
    The book is light
    The table provides a normal force
  • What is a normal force?
    A force from wind
    A pulling force from the Earth
    A force from muscles
    A force from a surface that supports an object
  • When an object is resting on a surface, the normal force usually balances:
    Gravity
    Air resistance
    Applied force
    Friction
  • What happens when you drop a book?
    It falls toward the ground
    It disappears
    It floats in the air
  • Which action uses an applied force?
    A jar on a table
    Rain falling
    Pushing a door open
    A rock falling
  • Which force causes rain to fall from clouds to the ground?
    Wind
    Magnetism
    Friction
    Gravity
  • A push or pull exerted on an object.
    Force
    Pitch
    Speed
  • Applied forces can cause objects to:
    Only fall down
    Move, stop, or change direction
    Only slow down
    Only move faster
  • In the force diagram this arrow indicates ___.
    Gravity
    Force
    Normal Force
    Friction
  • Which type of force is this?
    Frictional Force
    Applied Force
    Gravitational Force
    Balanced Force
  • Why does the picture show you an applied force?
    The trolley have wheels to move forward and backward
    The girl moved the trolley by pushing it
    The girl do not move the trolley
    The girl moved the trolley by pulling it
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