Transcript Bouncy

Bouncy Task
Task 1
Task 2
Task 3
Task 5
Task 6
Task 7
NC Level 5 to 7
Task 4
Bouncy Task 1
A company is making balls. It uses a mixture
of rubber and plastic.
How would you measure the bounciness of
the balls!
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Bouncy Task 2
A bouncy ball is made from 75% rubber and
the rest plastic.
It weighs 20g
How much plastic is needed for 50 balls?
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Bouncy Task 3
A bouncy ball is made from 75% rubber and
the rest plastic.
It weighs 20g
If you have 2kg of rubber, how many balls
can you make?
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Bouncy Task 4
A ball has a volume of 1000cm 3 . When
packed into a box they take up 85% of the
available space.
The company is going to sell 50 per box.
What size of box is needed?
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Bouncy Task 5
A ball is dropped and bounces up to a height
that is 75% of the height from which it was
dropped.
It then bounces again to a
height that is 75% of the
previous height and so on.
A student drops the ball from 1.5m, what is
the height of the 3rd bounce?
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Bouncy Task 6
A ball is dropped and bounces up to a height
that is 75% of the height from which it was
dropped.
It then bounces again to a
height that is 75% of the
previous height and so on.
How many bounces does it make before it is
bounces to 20% of the original height ?
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Bouncy Task 7
A ball is dropped and bounces up to a height
that is 75% of the height from which it was
dropped.
It then bounces again to a
height that is 75% of the
previous height and so on.
The 6th bounce is measured as 0.2m
What was the height it was dropped from?
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