Review for Light Test

A student is sitting at her desk one day, and notices that the lights in her classroom have a cover over them:

She wonders if these covers affect the light in any way, and decides to plan an investigation to find out if they are transparent or translucent.  Which of the choices below is an investigation and will give her accurate results?

• She can do research on the internet to see if the company who builds the covers tells if they are transparent or translucent on their website.

• She can turn off the lights and try to see through the cover, deciding if the objects on the other side look clear or not.

• She can interview the workers who installed the ceiling, asking if they use transparent or translucent covers.

• She can take off one of the covers and shine a light through the cover, looking at the light carefully on both sides.

Tags

NGSS.MS-PS4-2

Which of the following materials is transparent (allows all light to go through)?

• cardboard

• glass

• metal

• cloth

Tags

NGSS.MS-PS4-2

Students want to explore how light interacts with different materials. Which of the following investigations would BEST allow students to see how light interacts with different types of materials to classify them?

• Take three different types of flashlights to see the amount of light that shines through a piece of construction paper.

• Take three different types of flashlights to see the brightness of light when turned on in a dark classroom.

• Take three different types of materials such as: cardboard, wood, and a thick blanket to see the amount of light that shines through it when placed under a flashlight.

• Take three different types of materials such as: aluminum foil, plastic wrap, and white paper to see the amount of light that shines through it when placed under a flashlight.

Tags

NGSS.MS-PS4-2

A student is planning an investigation to determine why we can see our reflection in some materials and not others. Which of the following investigations can the student perform to see the difference?

• The student should look in mirrors at different angles.

• The student should compare different types of mirrors.

• The student should look at the same piece of glass during the night and day time.

• The student should look into different substances with smooth and rough surfaces.

Tags

NGSS.MS-PS4-2

On his way home from school, a student notices a car with dark, tinted windows:

He wonders if the windows he is seeing are translucent or opaque, and plans the following investigation to find out:

Step 1 - Shine a laser pointer at the window from outside the car.

Step 2 - Look through the window to see if the laser’s light is shining inside the car or not.

Which of the following choices would improve his investigation?

• Change step 1 - he should use a flashlight instead of a laser pointer

• Change step 1 - he should look to see if he can see through the window

• Change step 2 - he should look to see if he can see the laser on the outside of the window

• Change step 2 - he should look at how the laser pointer’s light looks from inside the car

Tags

NGSS.MS-PS4-2

A student in the cafeteria brings a large clear plastic cup filled with water. The student places a bright pink straw in the water. What observations can the students at the table make about the straw once it touches the water?

• The straw will appear broken because light travels through water differently than air.

• The water bends the straw. Once the student takes the straw out of the water, the straw will still be bent.

• The light from the straw will bounce back to the students’ eyes so it will appear that there is no straw in the water.

• The straw will go in the water and there will be no difference in how light affects the water and air that the straw is in.

Tags

NGSS.MS-PS4-2

Students can demonstrate reflection by doing which of the following?

• Warming metal under a heat lamp.

• Enlarging an image using a hand lens.

• Measuring a shadow made by the Sun.

• Observing their own image in still water.

Tags

NGSS.MS-PS4-2

Students used flashlights on different materials and recorded their results. Which material demonstrated a reflection of light?

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Tags

NGSS.MS-PS4-2

Students conducted an experiment to classify different types of materials as opaque, transparent, or translucent. Which of the following choices correctly classifies the materials?

• Opaque - Aluminum foil

  Transparent - Glass

  Translucent - Wax paper

• Opaque - wax paper

  Transparent - Glass

  Translucent - aluminum foil

• Opaque -Aluminum foil

  Transparent - Wax paper

  Translucent - Glass

• Opaque - Glass

  Transparent - Aluminum foil

  Translucent - Wax paper

Tags

NGSS.MS-PS4-2

A student held a smooth piece of aluminum foil near his face and could see himself. Then, the student crumpled up the foil, opened it back up, and looked at the foil again. He could not see himself this time. Why was he unable to see himself in the crumpled piece of foil?

• The foil lost its thickness, and light was able to travel through it.

• The foil was uneven and trapped all of the light that traveled toward it.

• The foil was uneven, and the light that hit it traveled in many different directions.

• The foil absorbed the oils in Joshua's hand, and the oil caused light to stop at the foil.

Tags

NGSS.MS-PS4-2