8.6B Speed, Velocity, Acceleration

Front

What is speed?

Back

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

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, also measured in meters per second (m/s).

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time, measured in meters per second squared (m/s²).

Front

How does direction affect acceleration?

Back

Acceleration can occur even if the speed is constant if the direction of the object changes.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v_f) - Initial Velocity (v_i)) / Time (t).

Front

What is a unit of acceleration?

Back

The standard unit of acceleration is meters per second squared (m/s²).

Front

What does a flat line on a velocity-time graph indicate?

Back

A flat line indicates that the object is moving at a constant velocity (no acceleration).

Front

What does a steep slope on a velocity-time graph represent?

Back

A steep slope indicates a high acceleration.

Front

If a car is moving in a circle at a constant speed, is it accelerating?

Back

Yes, because its direction is changing, which means its velocity is changing.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).