Unit Test — Unit test Answers

How is speed calculated?

Which example best represents balanced forces?

Quincy drew a diagram to compare the processes of scientific investigation and technological design.

Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?

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 may result from an increase in friction?

A skydiver falls toward the ground at a constant velocity. Which statement best applies Newton’s laws of motion to explain the skydiver’s motion?

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

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

Which refers to the standards used to make a judgment or decision when designing a product?

While drilling metal, Ben poured oil over the area. Which best explains why he did this?

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

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

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?

An object in projectile motion will follow which path?

The graph shows two runners participating in a race.

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

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