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Gravity and forcwe

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  • Name two type of force?
    Gravity and applied force.
  • What happens when forces are balanced?
    The object stay still or moves at the same speed.
  • Are gravity and normal force balanced fro a book on a table.
  • Name one use of artificial satellites and what do weather satellite take?
    Weather prediction / photographs of earth
  • What is an artificial satellite?
    A satellite made by humans
  • Why do satellite need high speed?
    To stay in orbit
  • What does the arrow direction shown ?
    The direction of the force
  • Does gravity act on moving objects and also object at rest?
    yes
  • What force supports objects resting on surfaces?
    Normal force
  • What keeps the moon in orbit?
    Earth's Gravity
  • Why is a force diagram useful?
    It helps us understand how forces act on objects
  • What is the international space station?
    An artificial satellite
  • What does the arrow length show?
    The size of the force
  • What is gravity?
    Gravity is a force that pulls object towards t he erath.
  • What is a force?
    A force is a push and a pull.
  • How are forces shown on a force diagram?
    By arrows
  • When does a normal force act?
    When an object is in contact with another object
  • Doea gravity work over a distance?
    Yes , it does
  • Why does a book stay still on a table?
    Gravity pulls it down and the table pushes it up with equal force.
  • What is an applied force?
    A force applied by a person or object
  • What is a force diagram?
    A drawing that shows forces acting on an object.
  • Do all objects have gravity?
    Yes, all objects have gravity
  • What is a satellite?
    An object in space that orbits a larger object
  • When is gravity stronger: closer or far objects
    Close objects
  • What keeps artificial satellite in orbits?
    Gravity and speed
  • Why is the moon called a natural satellite?
    Because it orbits the earth and it is not made by human.
  • What force is used when standing up from a chair?
    Applied force
  • What does orbit mean?
    To move around somethig
  • What is a normal force?
    A normal force is a support force from a surface
  • How so artificial satellite get into space?
    They are launched by rockets
  • Is gravity an applied force?
    No, it is a non- contact force.
  • Which have stronger gravity : big objects or small objects
    Big objects
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