5.P.1.2 #3: Schoolnet

Front

What does it mean when a runner is 'speeding up'?

Back

It means the runner is increasing her speed over time.

Front

If a runner travels 6 miles in one hour and 8 miles in the next, what can we say about her speed during the second hour?

Back

She is speeding up because she traveled a greater distance in the same amount of time.

Front

What is the definition of average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

If a runner completes 2,000 meters at a speed of 6 meters/min, how long does it take her?

Back

It takes her 333.33 minutes (2000 meters ÷ 6 meters/min).

Front

What can we conclude if two runners finish a race at the same time?

Back

They ran at the exact same average speed.

Front

What happens to objects of different masses when dropped from the same height?

Back

They land at the same time if air resistance is negligible.

Front

What is the role of gravity in falling objects?

Back

Gravity pulls objects towards the Earth, causing them to fall.

Front

If two cars travel the same distance but one arrives first, what can we infer about their speeds?

Back

The car that arrived first traveled faster than the other car.

Front

What does it mean if two objects have the same force acting on them?

Back

It means they experience the same acceleration regardless of their mass.

Front

What is the relationship between speed and distance?

Back

Speed is the distance traveled per unit of time.