Flashcard - Motion

Front

What does the speedometer of a car indicate?

Back

Instantaneous speed

Front

If an old lady rolls down a hill at 3 meters/second and the hill is 36 meters long, how long does it take her to reach the bottom?

Back

12 seconds

Front

What is the definition of speed?

Back

How much distance is covered over a period of time.

Front

If Shawn walks to Susan's house at 2 km/hr for 6 hours, how far is it?

Back

12 km

Front

A car moves a distance of 1000 m with an average speed of 28 m/s. How long does it take?

Back

36 seconds

Front

What is average speed?

Back

Total distance traveled divided by total time taken.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

If a runner completes a 400 m track in 50 seconds, what is their average speed?

Back

8 m/s

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 time if you know distance and speed?

Back

Time = Distance / Speed