6th Can I believe my eyes? Lessons 5-8

How are shadows made? Choose the BEST explanation.

• Turning off the lights will make shadows.

• An object blocks the path of the light which creates an area on a surface where no light reaches.

• Shadows can only form at night or with flashlights.

• Turn your back to the sun and a shadow will form behind you.

Tags

NGSS.4-PS4-2

True or False. When shinning the flahlight at the mirror, the readings were the highest when the light and the light sensor were on the same line position number making a “V.”

• True

• False

Tags

NGSS.MS-PS4-2

True or False. When shinning the flahlight at the mirror, the readings were the same at every number and didn’t change when we moved the flashlight.

• True

• False

Tags

NGSS.MS-PS4-2

True or False. When shinning the flahlight at the mirror, the sensor readings were usually low at all positions, except for immediately opposite the light, where the readings were very high.

• True

• False

Tags

NGSS.MS-PS4-2

Students used flashlights and light sensors to measure how light counces off each surface. Is the data in the table from the paper or mirror?

• paper

• mirror

Tags

NGSS.MS-PS4-2

Why are the light sensor readings of the light reflected from the paper pretty much all the same at every position? Select the BEST explanation.

• The paper does not reflect any light from the flashlight.

• There was something wrong with the sensor there should be one position with a much higher reading.

• The light from the flashlight gets scattered in every direction.

• The paper absorbs most of the light from the flashlight.

Tags

NGSS.MS-PS4-2

What type of surface does the model show light bouncing off?

• Rough

• Smooth

• Transparent

Tags

NGSS.MS-PS4-2

What is similar and different about seeing an object and seeing a shadow? SELECT ALL THAT APPLY.

• There is no difference between seeing a shadow and seeing an object.

• Both require light to be bounced from something to my eyes.

• My eyes see the light coming from the area around a shadow; they do not see the shadow directly.

• The shadow reflects dark colored light.

Tags

NGSS.MS-PS4-2

Use the light model to answer the following questions.  How does the light model help you explain that the shape of the shadow is like the shape of the object? SELECT ALL THAT APPLY.

• I see an object because the light from the source enters my eyes directly.

• Light rays can be blocked by an object so that no light gets to space directly behind the object.

• Light travels in straight lines in all directions so light will hit all of the space around the blocking object.

• The model shows that the shape of the shadow is a representation of the shape of the object.

Tags

NGSS.4-PS4-2

Look at the image of three different materials. Which image shows a translucent materials.

• Image A

• Image B

• Image C

Tags

NGSS.MS-PS1-2