# Force and Pressure

Get Started. It's Free Force and Pressure ## 5. Different types of forces

### 5.2. Gravitational Force

5.2.1. Exists between any two objects

5.2.2. This is the force that causes object to be attracted to the Earth.

### 5.3. Magnetic Force

5.3.1. Force exerted by a magnet on a magnetic material or another magnet.

5.3.2. Bar magnet have two poles.

5.3.2.1. North-seeking pole

5.3.2.2. South-seeking pole

5.3.3. Forces between magnets

5.3.3.1. Like poles repel: Magnets push away from one another

5.3.3.1.1. New node

5.3.3.2. Unlike poles attract: Magnets pull towards each other

### 5.4. Frictional Force

5.4.1. Occurs when two moving objects are in contact

5.4.2. Effects

5.4.2.1. Stops and slows down a moving object

5.4.2.2. Produces heat

## 6. Pressure is the force acting per unit area.

### 6.1. Pressure increases when

6.1.1. The force increases

6.1.2. The area decreases

## 7. Calculating Pressure

### 7.1. Formula

7.1.1. Force / Area

### 7.2. SI Unit

7.2.1. N/m2

7.2.2. Pascal (Pa)