7.7AC

Which object travels at the greater average speed?

• Object 1, because it travels the greater distance per unit of time

• Object 1, because it travels the longer amount of time

• Object 2, because it travels the shorter amount of time

• Object 2, because it travels the shorter distance per unit of time

Two students record the distance they each traveled in 60 seconds. If the students continue at the same speed, which statement describes the total distance traveled after 90 seconds?

• Student 1 traveled 40 m, and student 2 traveled 20 m.

• Student 1 traveled 50 m, and student 2 traveled 30 m.

• Student 1 traveled 60 m, and student 2 traveled 30 m.

• Student 1 traveled 70 m, and student 2 traveled 25 m.

A horse trainer records the distance a horse travels during three different trials. What is the horse’s average speed in kilometers per minute?

• 0.1 km/min

• 0.2 km/min

• 0.3 km/min

• 0.4 km/min

Which table best shows the average speed of the toy car at different time intervals?

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• 
• 
• 

Which graph represents a baseball player accelerating away from a base located at the origin?

• Graph A

• Graph B

• Graph C

• Graph D

What is the purpose of using distance-time graphs in measuring motion?

• To record and interpret an object's motion

• To measure temperature changes

• To calculate the weight of an object

• To determine the color of an object

Which answer choice best describes the movement of the object between the times of 0 and 6 seconds on the graph?

• Moving at a constant speed

• Moving toward the north

• Accelerating

• Stopped