Lesson Check: Position and Motion

Front

What is the unit of distance?

Back

mi (miles)

Front

When describing a position, is it enough to specify only a distance?

Back

False

Front

What is motion?

Back

Changing position to any direction

Front

What is the unit of time?

Back

hr (hours)

Front

If Dave runs a 400 m race at a speed of 4 m/s, how long will it take him to finish?

Back

100 seconds

Front

What is the definition of speed?

Back

Speed is the distance traveled per unit of time.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

What is the difference between distance and displacement?

Back

Distance is the total path length traveled, while displacement is the shortest distance from the initial to the final position.

Front

What does a speed of 60 km/hr mean?

Back

It means that an object travels 60 kilometers in one hour.

Front

What is the relationship between speed, distance, and time?

Back

If you know any two of these values, you can calculate the third using the formula: Distance = Speed × Time.