Relooping Review Quiz

Steven threw four balls into the air and recorded their heights. The chart below shows the maximum height for each ball.

• Ball P went twice as high as Ball N.
  

• Ball M went twice as high as Ball N.
  

• Ball P went two meters higher than Ball O.

• Ball N went two meters higher than Ball O.

A magnet is placed near a pile of steel paper clips. Which will most likely occur?

• The magnet will provide a balanced force, causing the paper clips to spin in circles.

• The magnet will provide an unbalanced force, keeping the paper clips stationary.

• The magnet will provide a balanced force, pushing the paper clips away from it.

• The magnet will provide an unbalanced force, pulling the paper clips toward it.

John wants to build a racetrack that will allow his toy cars to travel fast when force is applied. Which material should he use?

• carpet, because friction will be high

• gravel, because friction will be high

• plastic, because friction will be low

• Sandpaper, because friction will be low

Use the data table below to answer the following question: Which of the following describes the motion of the object between 0 and 10 seconds?

• The object moved at a constant speed.

• The object was at rest for the entire time.

• The object moved and then was at rest.

• The object was at rest and then moved.

The graph below shows the distance in meters covered by a walker within seven seconds. Which time frame showed the fastest movement?

• A. between 4 and 5 seconds

• B. between 0 and 2 seconds

• C. between 2 and 4 seconds

• D. between 5 and 6 seconds

Sally ran a distance of 8m in 16s. The graph below shows her motion. Which best describes her motion?

• A. Her speed was constantly changing.

• B. Her speed remained constant.

• C. She stopped moving after four seconds.

• D. She decreased her speed after four seconds.

Which graph represents a moving object with a constant speed throughout its entire travel time?

• A

• B

• C

• D

The graph below shows the distance traveled by an object over 100 seconds. What happened to the motion of the object between t = 50 s and t = 70 s?

• The object increased its speed.

• The object decreased its speed.

• The object stopped moving.

• The object changed directions.

The diagram shows a 21.7-kg ball located on a shelf 1.6 m above the ground. Which best describes the energy of the ball?

• Its energy is lost once it falls off the shelf.

• Its energy depends on the speed at which the ball travels.

• It has mechanical energy in the form of potential energy.

• It has mechanical energy in the form of kinetic energy.

Which type of energy is changed by plants into chemical energy?

• solar

• nuclear

• thermal

• gravitational