Forces and Transport

Question 1

Define Pressure

Answer 1

Pressure is a continuous physical force against an object

Question 2

What is the formula for pressure (including units)?

Answer 2

Pressure(N/m2) = Force(N)/Area(m2)

Question 3

What do levers do

Answer 3

They reduce the amount of force needed to do something

Question 4

How do levers work?

Answer 4

They increase the distance over which the lever is acting upon

Question 5

What is a moment?

Answer 5

Turning forces around a pivot

Question 6

What is the formula for the moment (include units)?

Answer 6

Moment(Nm) = Force(N) * Distance(m)

Question 7

What is hydraulics?

Answer 7

Hydraulics is when a force is applied at one point and is transferred to another through the use of an incompressible liquid

Question 8

What is a magnetically hard metal?

Answer 8

A metal that retains magnetism for a long time e.g Steel

Question 9

What is a magnetically soft metal?

Answer 9

A metal that quickly loses magnetism e.g Iron

Question 10

What direction do water particles go to in a container

Answer 10

All directions