Speed, Velocity & Acceleration/Distance-Time Graphs

Front

What is speed?

Back

Speed is the distance traveled per unit of time, calculated as Speed = Distance ÷ Time.

Front

What is the formula to calculate speed?

Back

Speed = Distance ÷ Time.

Front

What is the difference between speed and velocity?

Back

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

Front

What does a distance-time graph represent?

Back

A distance-time graph shows how distance changes over time, indicating speed and motion.

Front

How can you determine who finished a race first using a distance-time graph?

Back

The person with the steepest slope on the graph finished first, as they covered distance the fastest.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time.

Front

If a car is moving at a constant speed on a curved road, what is happening to its velocity?

Back

The speed is constant, but the velocity is changing due to the change in direction.

Front

What is the unit of speed?

Back

The unit of speed is typically meters per second (m/s) or kilometers per hour (km/h).

Front

If a train travels 90 km in one hour, what is its speed?

Back

The speed of the train is 90 km/h.

Front

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

Back

A horizontal line indicates that the object is at rest, as there is no change in distance over time.