The formula for pressure Pressure = Force divided by Area Pressure = Force times Area Pressure = Area divided by Force Pressure = Area times Force
Pressure = Force divided by Area
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The unit for pressure Pascal Newton Gram Miles
Pascal
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When force increases... pressure increases pressure decreases pressure stays the same pressure increases then decreases
Pressure increases
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When area increases... pressure increases pressure decreases pressure stays the same pressure increases then decreases
Pressure decreases
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Look at the pressure triangle. How do we calculate the area?
f ÷ a f x p p x f f ÷ p
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What pressure does a 4000N horse exert on the ground if each foot is 10cm2?40 N/cm2 100 N/cm2 400 N/cm2 10 N/cm2
100 N/cm2
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If you're walking in snow why would you wear boots instead of high heels? Because boots have a higher surface area making the pressure less and stopping you from sinking. Because it's more comfortable No, high heels are better
Because boots have a higher surface area making the pressure less and stopping you from sinking.
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Which of these animals would probably cause the greatest pressure on the ground? A fat cow with big feet A fat cow with small feet A calf with big feet A calf with small feet
A fat cow with small feet
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A cardboard box weighs 30N. If we added weight to the box, what would happen to the pressure? increase decrease stay the same