Momentum — Unit test Answers

An object in projectile motion will follow which path?

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?

The chart lists the masses and velocities of four objects.

Which is an example of sliding friction?

Which refers to the sum of all the forces that act upon an object?

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.

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

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

Which may result from an increase in friction?

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

How is speed calculated?

Which would be represented by FN on a force diagram?

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

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 graph shows two runners participating in a race.

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?

When discussing Newton’s laws of motion, which terms do people most likely use when talking about Newton’s third law of motion?

Which statement correctly describes gravity?