Pressure is the force to area ratio to which a force is distributued. The equation for pressure is P=F/A, Pressure equals the force divided by area, meaning the area and force are directly related. If there is a lower area, the force doesnt need to be as high for a high pressure. Pressure is measured in newtons per square metre, or pascal (Pa).
The pressure felt on your finger from the button on a camera is very low because, the surface area is small so you dont have to aply as much force to push it down.
EXAMPLE QUESTIONS
Q. How much pressure is produced from 200n acting on a surface area of 4m2?
A. 50 Pa
Q. What would be best when cutting a corrot?
a. another carrot.
b. a blunt knife.
c. a sharp knife.
d. a cell phone.
A. The answer is c, a sharp knife.
The pressure felt on your finger from the button on a camera is very low because, the surface area is small so you dont have to aply as much force to push it down.
EXAMPLE QUESTIONS
Q. How much pressure is produced from 200n acting on a surface area of 4m2?
A. 50 Pa
Q. What would be best when cutting a corrot?
a. another carrot.
b. a blunt knife.
c. a sharp knife.
d. a cell phone.
A. The answer is c, a sharp knife.