Introduction to Motion

Question 1

How is velocity different from speed?

Revolt · Accepted Answer

Velocity includes direction.

Question 2

Column B represents the variable to be plotted on the -axis.

Revolt · Accepted Answer

y

Question 3

In a position vs time graph, time is always plotted on the -axis.

Revolt · Accepted Answer

x

Question 4

An Olympic runner completes the 200-meter sprint in 23 seconds. What is the runner’s average speed? (Round your answer to the nearest tenth of a meter per second.)

Revolt · Accepted Answer

8.7 m/s

Question 5

Shelley gives her little sister a 5-meter head start in a bike race. The race ends 15 meters east from where Shelley started. If her little sister completes the race in 5 seconds, what is her sister’s average velocity? (Round your answer to the nearest whole number.)

Revolt · Accepted Answer

2 m/s east

Question 6

Mikael runs with a speed of 3 m/s for 45 seconds. How far does Mikael run?

Revolt · Accepted Answer

135 m

Question 7

Column A represents the variable to be plotted on the -axis.

Revolt · Accepted Answer

x

Question 8

Which represent correct variations of the formula for speed? Check all that apply.t = s = t = s = dtd = std =

Revolt · Accepted Answer

t =; s =; d = st

Question 9

Which statements best describe the motion of Car A and Car B? Check all that apply.

Revolt · Accepted Answer

Car A and Car B are moving in opposite directions.; Car A is moving faster than Car B.; Car A and Car B pass each other at the crossover point on the graph.

Introduction to Motion Answers

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