Speed, Velocity, and Acceleration

Front

What is acceleration?

Back

The rate of change of velocity per unit time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What does a flat horizontal line on a distance-time graph represent?

Back

The object is not moving.

Front

If an object moves in a straight line and returns to its starting point, what is its average velocity?

Back

Zero.

Front

What is the formula for calculating average speed?

Back

Average Speed = Total Distance / Total Time.

Front

What does a steeper slope on a distance-time graph indicate?

Back

A greater speed.

Front

What is the unit of acceleration?

Back

Meters per second squared (m/s²).

Front

What does a negative acceleration indicate?

Back

The object is slowing down.

Front

What is the formula for acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What is the significance of direction in velocity?

Back

Velocity includes direction, which means two objects can have the same speed but different velocities if they are moving in different directions.