Lab: Motion — 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?

Which does a reference point provide?

The graph shows two runners participating in a race.

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

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

How is speed calculated?

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.

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?

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

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?

Which equation can be used to solve for acceleration?

Veronica’s velocity was measured as 4.3 m/s. She displaced 20 meters in 4.7 seconds. Which piece of information is missing for the correct calculation of velocity?

Which refers to the rate of change in velocity?

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

Which best defines the relationship between speed and velocity?

The diagram shows a vertical number line.

The chart shows Daniela’s run through her race.

Jamal is 8 miles away from his house. He rides his bike home toward home at a speed of 12 mph..How far away from home is he after a half hour?

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?