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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
increase
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
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.
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
Look at the pressure triangle. How do we calculate the area?
f Ă· a f x p p x f f Ă· p
When area increases... pressure increases pressure decreases pressure stays the same pressure increases then decreases
Pressure decreases
When force increases... pressure increases pressure decreases pressure stays the same pressure increases then decreases
Pressure increases
The unit for pressure Pascal Newton Gram Miles
Pascal
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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