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

Students can demonstrate reflection by doing which of the following?

• 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

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 answer the following question: How can I use two mirrors to make a beam of light hit a certain target? The picture shows his plan. How would you help the student refine/improve his investigation to hit the target?

• The student should decrease the size of his target.

• The student should change the position of the mirrors.

• The student should use a flashlight instead of a laser pointer.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS4-2

A student is planning an investigation to answer this question: How will a mirror reflect light that strikes it at different angles? As she investigates this question, what should she change in each trial to answer this question?

• The type of mirror

• The location of the mirror

• The location of the light she shines at the mirror

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

A card with writing on it is viewed through a jar with water in it. Part of the writing on the card appears to be changed. The change in appearance of the writing is the result of which of the following?

• Not all of the light that strikes the writing is reflected.

• Light rays passing through the water are bent.

• Light rays are absorbed by the glass of the jar.

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 sees this picture in his science textbook. He plans an investigation to see if other types of objects will produce the same effect.

Step 1 - I will get three other items to try shining a laser pointer through like this: a small bottle of hand sanitizer, a small container of clear slime, and a small piece of clear glass.

Step 2 - I will shine the laser pointer one time at each object. Each time I will shine it at a different angle.

Step 3 - I will look carefully at the path of the laser to see if the light was refracted and draw what I see.

Which step of the investigation should the student change to improve his investigation, and why?

• Step 1 - He should not try the investigation with three different objects.

• Step 2 - He should keep the same angle of light for each object.

• Step 3 - He should not draw the results of the light's path.

Tags

NGSS.MS-PS4-2