7.7C - Understanding Distance-Time Graphs

A car travels 60 kilometers in 2 hours. What is the average speed of the car?

• 20 km/h

• 30 km/h

• 40 km/h

• 50 km/h

Tags

NGSS.MS-PS3-1

Which of the following distance-time graphs represents an object moving at a constant speed?

• A straight line with a positive slope

• A curved line

• A horizontal line

• A straight line with a negative slope

If a cyclist travels 15 km in 1 hour and then 30 km in the next 2 hours, what is the total distance covered by the cyclist?

• 30 km

• 35 km

• 40 km

• 45 km

A runner's distance-time graph shows a line that becomes steeper over time. What does this indicate about the runner's motion?

• The runner is slowing down.

• The runner is speeding up.

• The runner is moving at a constant speed.

• The runner has stopped.

A car travels at a constant speed of 50 km/h for 3 hours. How far does the car travel?

• 100 km

• 150 km

• 200 km

• 250 km

A distance-time graph shows a horizontal line. What does this tell you about the object's motion?

• The object is moving at a constant speed.

• The object is accelerating.

• The object is decelerating.

• The object is stationary.

A student records the motion of a toy car and plots the data on a distance-time graph. The graph shows a line that curves upwards. What does this suggest about the toy car's motion?

• The toy car is moving at a constant speed.

• The toy car is accelerating.

• The toy car is decelerating.

• The toy car has stopped.

Tags

NGSS.MS-PS3-1

If a train travels 120 km in 2 hours and then 180 km in the next 3 hours, what is the average speed of the train for the entire journey?

• 50 km/h

• 60 km/h

• 70 km/h

• 80 km/h

A distance-time graph shows a line that slopes downward. What does this indicate about the object's motion?

• The object is moving forward.

• The object is moving backward.

• The object is stationary.

• The object is accelerating.

A cyclist's distance-time graph shows a line that becomes less steep over time. What does this indicate about the cyclist's motion?

• The cyclist is speeding up.

• The cyclist is slowing down.

• The cyclist is moving at a constant speed.

• The cyclist has stopped.

Tags

NGSS.MS-PS3-1