# Chapter 2 Physics Vocab

## 16 terms · I once amputated a sheep's face

### Displacement

Change in Position

### Distance

Scalar quantity equal to the sum of the magnitude of the displacements

### Speed

Ratio of distance traveled to the time interval

### Vector Quantity

Quantity having both magnitude (size) and direction

### Velocity

Rate of change of position (displacement) with respect to time.

### Average velocity

The change in total position (displacement) divided by the change in total time

### Acceleration

The rate of change of velocity with respect to time

### Deceleration

negative acceleration

### Frame of Reference

Coordinate system used to describe motion

### Uniform quantity

quantity of constant value (acceleration or speed)

### Position

Distance of an object from some origin

### Slope

The change in the dependent variable divided by the change in the independent variable

### Instantaneous speed

Distance over time at any one time

### Free fall

a state of fall, free from air resistance and all other forces except gravity

### Kinematics

Study of motion and its mathematical and graphical representations

### Inertia

Tendency of an object not to change its motion