P11

Question 1

What is pressure

Answer 1

Pressure is when an object exerts forces on eachother. The pressure caused by any force depends on the area of contact on which the force acts, s well on the size of the force

Question 2

Equation of pressure

Answer 2

Pressure (pascals) = force (n) / area (metres squared)

Question 3

How is pressure used in hospitals

Answer 3

We know that shap knives cut more than a blunt knive this is because the front area of the blunt knife if more that the sharp one which means the sharp one has a much bigger cutting effect

Question 4

How can we use a bug bottle filled with water as an example of pressure

Answer 4

You can put holes on the bottle going down then you can clearly see that the bottom hole on the bottom of the bottle that the water comes put more faster/stranger than the ones above it

(P11.2 for diagrm)

Question 5

How do you find pressure in liquid

Answer 5

Pressure / height X density of liquid X gravitational field strenth

(P11.2)