# Motion and Rest: Understanding Displacement, Velocity, and Acceleration

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## 5 Questions

### What is the primary difference between distance and displacement?

Distance is a scalar quantity, while displacement is a vector quantity.

Acceleration

### What type of motion involves movement along a straight line?

Rectilinear motion

Retardation

## Study Notes

### State of Body

• A body can be in one of two states: motion or rest
• Motion and rest are interrelated, meaning that a body can change from one state to the other

### Types of Motion

• There are different types of motion, including motion along a straight line or rectilinear motion

### Motion Along a Straight Line or Rectilinear Motion

• Distance and displacement are two important concepts in rectilinear motion
• Distance refers to the total length of the path traveled by an object
• Displacement refers to the shortest distance between the initial and final positions of an object
• Speed and velocity are also important concepts in rectilinear motion
• Speed is the rate of change of distance, whereas velocity is the rate of change of displacement
• Acceleration is the rate of change of velocity, and it can be either positive (increasing velocity) or negative (decreasing velocity), also known as retardation
• The slope of a line can be used to represent the velocity of an object moving in a straight line

Test your knowledge of motion and rest, including reference points, types of motion, and concepts like distance, displacement, speed, velocity, and acceleration. This quiz covers the fundamentals of motion along a straight line and rectilinear motion.

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