# Force and pressure

Get Started. It's Free
Force and pressure

## 1. Forces

### 1.1. What is a force?

1.1.1. A push or pull

1.1.1.1. Lifting

1.1.1.2. Twisting

1.1.1.2.1. New node

1.1.1.3. Bending

1.1.1.4. Stretching

1.1.2. When we push or pull something we exert force

### 1.2. Effects of force

1.2.1. We cannot see the force only its effects

1.2.2. What are the effects

1.2.2.1. Changing the speed of a moving object

1.2.2.2. Changing size and shape

1.2.2.3. Start a stationery object to move or stop a moving object

1.2.2.4. Changing the direction of a moving object

### 1.3. Measuring Force

1.3.1. Measure using a spring balance

1.3.1.1. Compression

1.3.1.2. Expansion

1.3.2. Unit: Newtons(N) named after the English Scientist Sir Issac Newton

### 1.4. important types of forces

1.4.1. Frictional

1.4.2. Gravitational

1.4.3. Magnetic

## 2. Pressure

### 2.1. What is pressure

2.1.1. Pressure is the amount of force per unit area

2.1.2. Decreasing Pressure

2.1.2.1. Increase area

2.1.3. Increasing Pressure

2.1.3.1. Decrease area