Benchmark #2 Review

Front

What does it mean for distance to be proportional to time in the context of a train's travel?

Back

It means that as the time increases, the distance traveled by the train also increases at a constant rate.

Front

What is a unit rate in the context of speed?

Back

A unit rate is the distance traveled per unit of time, often expressed in kilometers per hour (km/h).

Front

If a train travels 200 kilometers in 1 hour, what is its speed?

Back

200 kilometers per hour (km/h).

Front

What does the point (0,0) represent on a distance vs. time graph for a train?

Back

It represents that the train has traveled 0 kilometers after 0 hours.

Front

How can you determine the speed of a train from a distance vs. time graph?

Back

By calculating the slope of the line on the graph, which represents the change in distance over the change in time.

Front

What does it mean if a train travels 800 kilometers in 4 hours?

Back

It means the average speed of the train is 200 kilometers per hour.

Front

What is an incorrect interpretation of a distance vs. time graph?

Back

Saying that after 4 hours, the train is traveling 800 kilometers per hour is incorrect; it should be the total distance traveled, not the speed.

Front

What is the formula to calculate speed?

Back

Speed = Distance / Time.

Front

If a train travels at a constant speed of 150 km/h, how far will it travel in 3 hours?

Back

450 kilometers.

Front

What does a horizontal line on a distance vs. time graph indicate?

Back

It indicates that the train is not moving; the distance remains constant over time.