
Pressure = Force / Area
Authored by Mr Boyle
Physics
4th Grade
Used 35+ times

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15 questions
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1.
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1 min • 5 pts
What would the pressure be when a 500 N force is exerted on an area of 0.75 m2?
Give your answer to 3 significant figures.
Answer explanation
2.
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1 min • 5 pts
What would the pressure be when a 2250 N force is exerted on an area of 2.5 m2?
Answer explanation
3.
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1 min • 5 pts
What would the pressure be when a 5000 N force is exerted on an area of 33.33 m2?
Answer explanation
4.
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1 min • 5 pts
What would the pressure be when a 85 kg man stands on the ground and the surface area of each shoe is 0.325 m2?
Give your answer to 1 decimal place.
Answer explanation
Find the area by doubling 0.325 to 0.65 as the man wears two shoes.
The question gives us his mass as 85 kg, but mass is a scalar quantity, not a force. Convert to a force using W = m x g to get his weight as 850 N.
p = F/A
p = 850 N / 0.65 m2
p = 1307.7 Pa (to 1dp)
5.
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1 min • 5 pts
What would the pressure be when a 4000 N force is exerted on an area of 0.02 m2?
Give your answer in kPa.
Answer explanation
6.
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1 min • 5 pts
What would the force exerted on an object be when a pressure of 666.67 Pa is applied to an area of 0.75 m2?
Answer explanation
7.
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1 min • 5 pts
What would the force exerted on an object be when a pressure of 0.9 kPa is applied to an area of 2.5 m2?
Answer explanation
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