Calculating Speed Flashcard

Front

What two measurements are necessary for calculating speed?

Back

Distance and time

Front

What does a graph with a straight line represent?

Back

Constant Speed

Front

What is the formula to calculate speed?

Back

S = d/t

Front

How far does a person travel in the first 5 seconds if the distance is represented as 5 m on a graph?

Back

5 m

Front

A dog runs after a ball that is 45 meters away. It takes him 9 seconds to reach the ball. How fast is the dog running?

Back

5 m/s

Front

What is speed?

Back

Speed is the distance traveled per unit of time.

Front

What is the unit of speed in the metric system?

Back

Meters per second (m/s)

Front

If a car travels 100 meters in 5 seconds, what is its speed?

Back

20 m/s

Front

What does it mean if an object is accelerating?

Back

It means the object's speed is changing over time.

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).