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Inertia test
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1st XV score v St Kents on Saturday
90 to 5
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.
What must a netball player do to stop quickly after sprinting?
Apply a force against the ground to overcome their forward inertia.
Why do ice hockey players seem to glide easily across the ice?
Low friction means inertia keeps them moving longer with less resistance.
In cricket, why is a heavy bat harder to swing quickly?
It has greater inertia due to its mass.
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.
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.
Why do gymnasts need core strength to control inertia during flips?
To overcome and control their body's rotational inertia.
How does inertia impact a rugby tackle?
A tackler must overcome the runner’s inertia to bring them to a stop.
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.
How can inertia be reduced in sports performance?
By decreasing mass or improving technique to apply greater force efficiently.
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.
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 does a shot put need a strong initial force to move?
Its large mass means it has high inertia.
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.
In netball, why must players work hard to quickly change direction?
Because their body’s inertia resists sudden changes in motion.
Inertia keeps a moving ball in motion. What force eventually stops it?
Friction or another external force like air resistance or a player.
Why is it harder to push a rugby scrum than a soccer ball?
Because the rugby scrum has more mass and therefore greater inertia.
How does mass affect inertia?
The greater the mass, the greater the inertia.
Which law of motion is inertia related to?
Newton’s First Law of Motion – the Law of Inertia.
What is inertia?
Inertia is an object’s resistance to a change in its state of motion or rest.
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