## Physics P1: Motion

by Phillip CONRAD
## 1. Average speed is equivalent to the total distance over total time.

### 1.1. v=s/t

1.1.1. v=average speed

1.1.2. s=total distance

1.1.3. t=total time

### 1.2. Speed is the rate of change of distance

## 2. When an object moves faster, it accelerates, whereas then it moves slower, it decelerates.

### 2.1. Delta (Small triangle) means the change in something.

### 2.2. a=delta v/t

2.2.1. a=acceleration (in meters per second squared)

2.2.2. delta v=the change in speed (the first speed minus the second speed)

2.2.3. t=time taken

### 2.3. Acceleration is the change of speed.

## 3. Distance-Time Graphs

### 3.1. Represent the speed and distance traveled by a certain object over a certain period of time.

## 4. Graphs

### 4.1. Speed Time Graphs

4.1.1. Shows the speed and time of an object, as well as the distance travelled by the object.

4.1.2. x axis is time, represented by t, and in seconds

4.1.3. y axis is speed, represented by v, and in m/s

4.1.4. A slant shows constant acceleration, while a straight line shows constant speed.

4.1.5. Distance travelled is the area under the v/t graph.

### 4.2. Use Ruler Label everything Pencil

## 5. Displacement is distance measured in a given direction.

## 6. Velocity is the rate of change of displacement.

### 6.1. Velocity = Displacement / Time

### 6.2. Velocity and displacement are vectors, so they have size and direction.

### 6.3. Speed and distance are scalars, and they have no specific direction.