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KS3
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Pressure 03
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Q.1
A four legged table exerts a pressure of 8,000 Pa on the ground. Each leg has an area of 0.01 m . What is the weight of the table?
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32 N
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80 N
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320 N
0%
320 kg
Q.2
The bottom of a box has an area of 5 m . What is the weight of the box to produce a pressure of 20 Pa?
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4 N
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100 N
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4 kg
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100 kg
Q.3
What force is needed on an area of 5 m to produce a pressure of 25 Pa?
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5 N
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20 N
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30 N
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125 N
Q.4
What has to happen to the force exerted over a fixed area if the pressure doubles?
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The force must decrease
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The force must double
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The force must increase
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The force must stay the same
Q.5
Box A has a weight of 20 N. It is put on top of box B. These two boxes exert a pressure of 60 Pa. The area box B covers is 3 m . Find weight of box B.
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60 N
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80 N
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160 N
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180 N
Q.6
The dimensions of a ski are 8 cm x 150 cm. What is the weight of a skier standing on 2 skis to produce a pressure of 2,500 Pa?
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500 N
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600 N
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900 N
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2,400 N
Q.7
The bottom of a box has dimensions 2 m by 3 m. What is the weight of the box to produce a pressure of 20 Pa?
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4 N
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26 N
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100 N
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120 N
Q.8
A person at a fancy dress party is wearing a trainer on one foot and a shoe with a stiletto heel on the other! Which exerts the most pressure on the ground?
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Both the same
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Stiletto heel
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They don't exert a pressure
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Trainer
Q.9
What force is needed on an area of 4 m to produce a pressure of 16 Pa?
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0.25 N
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4 N
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64 N
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64 Kg
Q.10
What has to happen to the force exerted if the area doubles but the pressure is unchanged?
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The force must decrease
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The force must double
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The force must increase
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The force must stay the same
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