Speed and Acceleration Problems

Front

What is speed?

Back

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

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

What is the formula for calculating average speed?

Back

Average speed = Total distance / Total time.

Front

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

Back

A flat line indicates that the object is not moving (constant position).

Front

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

Back

A steep slope indicates a high speed of the object.

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).

Front

How do you calculate acceleration?

Back

Acceleration = (Final velocity - Initial velocity) / Time taken.

Front

What is the unit of measurement for speed?

Back

Common units for speed include meters per second (m/s) and kilometers per hour (km/h).

Front

What is the unit of measurement for acceleration?

Back

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

Front

If a car's speed increases from 20 m/s to 50 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = (50 m/s - 20 m/s) / 5 s = 6 m/s².