Speed

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

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken. Formula: Average Speed = Total Distance / Total Time.

Front

What is the unit of speed in the metric system?

Back

The unit of speed in the metric system is meters per second (m/s) or kilometers per hour (km/h).

Front

If a car travels 100 km in 2 hours, what is its average speed?

Back

Average speed = Total Distance / Total Time = 100 km / 2 hours = 50 km/h.

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

How do you convert minutes to hours?

Back

To convert minutes to hours, divide the number of minutes by 60.

Front

What is the average speed of a runner who completes a 400 m lap in 50 seconds?

Back

Average speed = Total Distance / Total Time = 400 m / 50 s = 8 m/s.

Front

What is a common mistake when calculating average speed?

Back

A common mistake is not accounting for all segments of the journey or not converting time units correctly.

Front

If a cyclist travels 24 km in 1 hour and then 12 km in 30 minutes, what is her average speed for the entire trip?

Back

Total distance = 24 km + 12 km = 36 km; Total time = 1 hour + 0.5 hours = 1.5 hours; Average speed = 36 km / 1.5 hours = 24 km/h.

Front

What is the formula to convert km/h to m/s?

Back

To convert km/h to m/s, divide the speed in km/h by 3.6.