Light Review

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

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 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 the light to stop at the foil.

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 compare different types of mirrors.

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

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

Tags

NGSS.MS-PS4-2

The diagram shows the ways light travels or behaves when shone into water. Which beam of light is the result of refraction?

• Beam A

• Beam B

• Beam C

Tags

NGSS.MS-PS4-2

Four students are planning investigations about how light is affected by different objects. Student #1 is investigating how light interacts with paper. Student #2 is investigating how light interacts with aluminum foil. Student #3 is investigating how light interacts with eyeglasses. Student #4 is investigating how light interacts with water. How many of these investigations will cause light to be refracted?

• One

• Two

• Three

Tags

NGSS.MS-PS4-2

A student in the cafeteria brings a large clear 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 go in the water and there will be no difference in how light affects the water and air that the straw is in.

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

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

Tags

NGSS.MS-PS4-2

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

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

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

Tags

NGSS.MS-PS4-2

Students observe how light interacts with different materials and record what they see in a data table. Which material would be entered into the empty box on the data table?

• Cardboard

• Glass

• Metal

Tags

NGSS.MS-PS4-2

What is the best scientific argument to explain the white color in the middle.

• White light contains red, blue and green light.

• The paper behind the light absorbs white.

• White light is reflected by the flashlights.

• The paper absorbed the light from the flashlights.

Tags

NGSS.MS-PS4-2

A student did an investigation on light brightness. She measured the light intensity with a light meter at different distances from a flashlight. A graph of her data is shown below. What is the best claim she can make from the data in her investigation?

• As the distance from the flash light increases the light intensity increases.

• As the distance from the flash light increases the light intensity remains the same.

• As the distance from the flash light decreases the light intensity increases.

• As the distance from the flash light decreases the light intensity remains the same.