Force, Energy and Motion Quiz

A student is looking directly at a lit nightlight through two different cardboard tubes as shown. Through which tube, if any, will the light be seen and why?

• The bent tube only because the light bounces off the sides of the tube and travels through the tube to the student’s eye

• Both tubes because light travels equally well along straight and curved paths

• Neither tube because both tubes absorb all of the light

• The straight tube only because the light travels in a straight line directly to the student’s eye

Students conduct experiments to investigate friction. Which experiment will BEST test the effect of friction on objects?

• Drop two balls from the same height at the same time

• Roll two marbles on the carpet from the same starting point at the same time and with the same amount of force

• Roll three marbles across three different surfaces from the same starting point at the same time and with the same amount of force

• Release two balls from the top of a ramp at the same time

A student collected seasonal observations for a year. He recorded his observations in the data table below. Which of the seasons should be labeled as fall?

• Season 1

• Season 2

• Season 3

• Season 4

Examples of objects that use different types of energy to perform their functions are shown. Which examples use mechanical energy to perform their functions?

• Examples 2 and 3

• Examples 1, 2, and 4

• Example 3 and 4 only

• Examples 1, 3, and 4

Look at the image. Ophelia is pushing a box across the floor. Which option correctly matches each number in the diagram with the force that occurs?

• 1: gravity; 2: magnetism; 3: applied force

• 1: applied force; 2: friction; 3: gravity

• 1: gravity; 2: friction; 3: applied force

• 1: magnetism; 2: gravity; 3: friction

A wagon is pushed and begins to move. As the wagon moves, it slows and comes to a stop. What force causes the wagon to stop?

• The force of gravity which is acting in the same direction as the arrow.

• The force of friction which is acting in the same direction as the arrow.

• The force of gravity which is acting in the opposite direction of the arrow.

• The force of friction which is acting in the opposite direction of the arrow.

The student is observing part of a plant with a microscope. Which statement describes a behavior of light in a microscope?

• Light travels through the microscope lens without changing direction.

• Moving in straight lines causes light to increase in brightness.

• Light refracts through the lens of the microscope.

• Moving in straight lines keeps light from reflecting.

Students make a solar system model on the playground. The school building represents the Sun. They label round objects for each planet. Which planet should they place at the greatest distance from the school building?

• Jupiter

• Neptune

• Mercury

• Saturn

A student uses the setup shown to investigate ways to speed up evaporation. What energy is being transformed from electricity in this investigation?

• Light energy and electrical energy

• Mechanical energy and electrical energy

• Light energy and thermal energy

• Mechanical energy and thermal energy

Answer explanation

A student designs an experiment to test the effect of the width of a piece of elastic on the elastic’s ability to stretch. The student selects four pieces of elastic with different widths but the same length. The student then attaches blocks with different masses to the pieces of elastic.

1. What is the variable being tested in the experiment?

2. 2. How could this experiment be improved?