Lab: Motion — Unit test Answers

Micah knows that a car had a change in velocity of 15 m/s. What does Micah need to determine acceleration.

Hunter’s velocity was 4.5 m/s. At the end of his race, his velocity was the same. Which best describes his movement?

Which does a reference point provide?

What is most often given a value of zero to describe an object’s position on a straight line?

The graph shows two runners participating in a race.

Which describes what a velocity/time graph would look like with no acceleration?

Olivia places her pet frog on a line to observe the frog’s motion. The line is divided into sections that measure 1 centimeter each. The frog begins at 0, moves 18 centimeters forward, moves 6 centimeters backward, and then 12 centimeters backward.What is the frog’s displacement?

A toy car is placed at 0 on a number line.It moves 9 cm to the left, then 4 cm to the right, and then 6 cm to the left. What is the total distance the toy car traveled?

How is speed calculated?

Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. His car was 20 meters from the starting line. This took 5 seconds.What is the car’s average velocity?

A graph labeled velocity versus time with horizontal axis time (seconds) and vertical axis velocity (meters per second). A blue line runs straight across at 2 units on the vertical axis for all horizontal axis values.

An object starts at position 12 on a horizontal line with a reference point of 0. What is the position of the object if it moves 14 units to the left?

Ariana is accelerating her car at a rate of 4.6 m/s2 for 10 seconds. Her starting velocity was 0 m/s.What was her final velocity?

Which could describe the motion of an object?

The graph represents velocity over time.

The diagram shows a vertical number line.

The chart shows the times and accelerations for three drivers.Which lists them from greatest to lowest change in velocity?

Beverly and Carl are in a race. Their graphs show the data.

Which units are used to measure both velocity and speed? Select three options.

The graph depicts the velocity and times of Elan and Anna during a race.