Unit Test — Unit test Answers

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?

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

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

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?

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

Which does a reference point provide?

The graph shows two runners participating in a race.

How is speed calculated?

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

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.

If the change in velocity increases, what happens to the acceleration during the same time period?

Sonya is playing a board game, and each space on the board game measures 1 centimeter. She moves her game token 5 spaces up from the start position. Then she moves it 5 spaces to the left. Finally, Sonya moves her token 2 spaces down.What is the total distance the token moved?

The graph represents velocity over time.

Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

Which velocity vs. time graph corresponds to the data represented by the position vs. time graph?

Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest.Which best describes her numbers?

Which best defines the relationship between speed and velocity?

The chart indicates the time, speed, and velocity of five runners.

Which is a valid velocity reading for an object?