Unit Test — Unit test Answers

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 would be represented by FN on a force diagram?

The resulting net force of an object is represented below. →10 NWhich most likely represent the forces acting on the object?

A bicycle has a momentum of 36 kg • m/s and a velocity of 4 m/s. What is the mass of the bicycle?

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?

The chart lists the masses and velocities of four objects.

Which does a reference point provide?

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?

An object in projectile motion will follow which path?

Newton’s first law of motion was a giant leap forward in scientific thought during Newton’s time. Even today, the idea is sometimes difficult at first for people to understand.

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

An object has a mass of 5 kg. What force is needed to accelerate it at 6 m/s2? (Formula: F=ma)

Which change will cause the gravitational force between a baseball and a soccer ball to increase?

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.

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

The graph shows two runners participating in a race.

Which refers to the force that one massive object exerts to attract another object?

Which example best represents balanced forces?