# The Physics of a Road Trip Concepts

Physics basic concepts

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The Physics of a Road Trip Concepts

## 3. Scalar Quantity

### 3.1. Any quantity that has magnitude but no direction.

3.1.1. Mass

3.1.1.1. Quantity of matter in a body regarless of volume and force. It is represented by "m", It is usually known in "kg", and the general formula is " m=F/a"

3.1.2. Distance

3.1.2.1. Shows how much ground an object has covered. It is represented by "d", the most common unit is "m or km", and the formula is "v*t"

3.1.3. Time

3.1.3.1. A measurable period that can be read with a clock. It is represented by "t" and it is often used in seconds or minutes.

3.1.3.1.1. Time interval

3.1.4. Speed

3.1.4.1. The rate of change of distance. It is represented by "v", the most common unit is "m/s^2", and the general formula is "v=d/t"

## 4. Vector Quantity

### 4.1. Any quantity that has magnitude and direction

4.1.1. Displacement

4.1.1.1. How far out of place an object is. It is represented by "Δ", the most common unit is "m", and the general formula is "d=Vot+1/2at^2"

4.1.2. Velocity

4.1.2.1. The rate of change of displacement. It is represented by "v", most common unit is "m/s", and the general formula is "v=s/t"

4.1.2.1.1. Average Velocity

4.1.2.1.2. Instantaneous Velocity

4.1.3. Acceleration

4.1.3.1. The rate at which an object changes its velocity. It is represented by "a", most common unit is "m/s^2", and the general formula is "Δv/Δt"

4.1.3.1.1. Constant Acceleration

4.1.3.1.2. Instantaneous Velocity

4.1.4. Force

4.1.4.1. Any interaction that, when opposed, will change the motion of its object. It is represented by "F", most common unit is "N/Newtons", and the general formula is "F=m*a"

4.1.4.1.1. Net Force

4.1.5. Weight

4.1.5.1. Force exerted on a body by gravity. It is represented by "W", The most common unit is "N/Newtons", and the general formula is "W=m*g"

## 6. Diagram

### 6.1. Motion Diagram

6.1.1. A series of diagrams showing the positions of a moving object at equal time intervals.

### 6.2. Particle Model

6.2.1. It is the same as a motion diagram, but it replaces the objects of interest with single points.

### 6.3. Free Body Diagram

6.3.1. The ones used to show the relative magnitude and direction of all forces upon an object in a given situation.