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Inertia test

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  • Which law of motion is inertia related to?
    Newton’s First Law of Motion – the Law of Inertia.
  • Why do gymnasts need core strength to control inertia during flips?
    To overcome and control their body's rotational inertia.
  • What happens if a football is kicked and no force is applied after?
    It will continue moving in a straight line until another force (e.g., friction) stops it.
  • What must a netball player do to stop quickly after sprinting?
    Apply a force against the ground to overcome their forward inertia.
  • In tennis, why must players prepare early to hit a fast-moving ball?
    They must overcome the racket’s inertia to change its direction in time.
  • In cricket, why is a heavy bat harder to swing quickly?
    It has greater inertia due to its mass.
  • Inertia keeps a moving ball in motion. What force eventually stops it?
    Friction or another external force like air resistance or a player.
  • How does inertia impact a rugby tackle?
    A tackler must overcome the runner’s inertia to bring them to a stop.
  • What role does inertia play when a sprinter explodes off the blocks?
    The sprinter must overcome their body’s inertia to start moving quickly.
  • Why is it harder to stop a moving scrum machine than to start it?
    Because once it's moving, it wants to stay moving – inertia resists the stop.
  • 1st XV score v St Kents on Saturday
    90 to 5
  • How does a goalkeeper use knowledge of inertia when diving for a save?
    They anticipate the ball’s path because inertia keeps it moving in a straight line.
  • What is inertia?
    Inertia is an object’s resistance to a change in its state of motion or rest.
  • In netball, why must players work hard to quickly change direction?
    Because their body’s inertia resists sudden changes in motion.
  • Why does a shot put need a strong initial force to move?
    Its large mass means it has high inertia.
  • How is inertia helpful in sports like discus or hammer throw?
    Once the object is in motion, its inertia helps it maintain velocity and travel far.
  • Why do ice hockey players seem to glide easily across the ice?
    Low friction means inertia keeps them moving longer with less resistance.
  • How does a basketball player use inertia to their advantage when rebounding?
    By timing their jump to meet the ball's momentum and overcome its inertia.
  • How does mass affect inertia?
    The greater the mass, the greater the inertia.
  • How can inertia be reduced in sports performance?
    By decreasing mass or improving technique to apply greater force efficiently.
  • Why is it harder to push a rugby scrum than a soccer ball?
    Because the rugby scrum has more mass and therefore greater inertia.
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