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seesaw
Swap points!
Oops!
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fairy
Take points!
5
10
15
20
25
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rocket
Go to first place!
Okay!
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thief
Give points!
5
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25
15
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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.
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15
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Why do gymnasts need core strength to control inertia during flips?
To overcome and control their body's rotational inertia.
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15
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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.
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15
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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.
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15
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In netball, why must players work hard to quickly change direction?
Because their body’s inertia resists sudden changes in motion.
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seesaw
Swap points!
Oops!
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gold
Win 50 points!
Okay!
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fairy
Take points!
5
10
15
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25
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baam
Lose 25 points!
Oops!
15
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Which law of motion is inertia related to?
Newton’s First Law of Motion – the Law of Inertia.
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15
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What is inertia?
Inertia is an object’s resistance to a change in its state of motion or rest.
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Why does a shot put need a strong initial force to move?
Its large mass means it has high inertia.
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How does mass affect inertia?
The greater the mass, the greater the inertia.
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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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banana
Go to last place!
Oops!
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gift
Win 15 points!
Okay!
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gift
Win 25 points!
Okay!
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baam
Lose 20 points!
Oops!
15
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Inertia keeps a moving ball in motion. What force eventually stops it?
Friction or another external force like air resistance or a player.
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15
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How can inertia be reduced in sports performance?
By decreasing mass or improving technique to apply greater force efficiently.
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15
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In cricket, why is a heavy bat harder to swing quickly?
It has greater inertia due to its mass.
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