Review

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Front

What is the difference between distance and displacement?

Back

Distance is the total length of the path traveled, while displacement is the shortest distance between the initial and final positions.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What does a straight line on a distance-time graph represent?

Back

A straight line indicates constant speed.

Front

What does a slope on a distance-time graph represent?

Back

The slope represents speed; a steeper slope indicates a higher speed.

Front

What does it mean if the line on a distance-time graph is horizontal?

Back

A horizontal line indicates that the object is at rest.

Front

What is the formula for calculating displacement?

Back

Displacement = Final Position - Initial Position.

Front

What is the unit of speed?

Back

The standard unit of speed is meters per second (m/s).