Lab: Motion

Question 1

Use the graph of speed versus time to answer the questions about acceleration.

Revolt · Accepted Answer

: A; : C; : B

Question 2

Use the table to answer the questions.

Revolt · Accepted Answer

: 86625; : 2.15; : 0.13

Question 3

Match the measurement with the proper SI unit.

Revolt · Accepted Answer

C: ✔ Meters per second squared

Question 4

Why does increasing the number of trials increase confidence in the results of the experiment?

Revolt · Accepted Answer

Increasing the number of trials increases confidence because it reduces the impact of random errors or imprecise measurements on the final results. By performing multiple trials, you can calculate an average value, which is generally a more accurate representation of the true value than any single trial. It also allows you to identify and account for outliers.

Question 5

Calculate speeds for each track. How much faster was the car on the higher track than the lower track?

Revolt · Accepted Answer

B: ✔ Cars travel faster on the higher track.

Question 6

Read the elapsed time on the stopwatch and answer the questions.

Revolt · Accepted Answer

: 86641; : 4

Question 7

Use the graph of speed versus time to answer the questions about acceleration.

Revolt · Accepted Answer

: 86646; : C; : B

Question 8

Question 8

Revolt · Accepted Answer

2.15

Question 9

Meters✔ Meters per secondMeters per second squared

Revolt · Accepted Answer

B: ✔ Meters per second

Question 10

What did you include in your answer? Check all that apply.

Revolt · Accepted Answer

A: It prevents one bad measurement from affecting the outcome of the experiment.; B: It allows one to calculate an average value.; C: The average value is typically a better representation of the true value.

Lab: Motion Answers

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