Light Energy Homework

What happens when light hits an object that it cannot pass through?

• A. The light is reflected or absorbed

• B. The light is refracted or absorbed

• C. The light is reflected or refracted

• D. The light is scattered or curved

Tags

NGSS.MS-PS4-2

Sometimes it is possible to see light rays. An example is when sunlight is breaking through the clouds. Sunlight breaking through clouds demonstrates how light rays travel --

• A. straight lines

• B. curved rays

• C. zigzag rays

• D. circular waves

Tags

NGSS.MS-PS4-2

Students were performing an investigation to compare and contrast the effects of reflection and refraction. What tools are most helpful to students when conducting this investigation?

• A. magnets and mirrors

• B. prisms and hand lenses

• C. hand lenses and cameras

• D. mirrors and prisms

Tags

NGSS.MS-PS4-2

Students performed an experiment testing refraction of objects in water. First, they recorded how objects looked in hot water. Then they used cold water to test if the appearance changed. What variable did students test in this experiment?

• A. Temperature of the water

• B. The students who performed the

  experiment

• C. Time of day the experiment was

  performed

• D. The objects tested.

Tags

NGSS.MS-PS4-2

Which of the following objects does NOT reflect light?

• A. a mirror

• B. a white car

• C. a black shirt

• D. aluminum foil

Tags

NGSS.MS-PS4-2

When light hits different types of objects, it acts differently depending on the object. Which object above best reflects light?

• A. sealable bag

• B. shower curtain

• C. Aluminum foil

• D. drinking glass

Tags

NGSS.MS-PS4-2

Was the student's conclusion accurate?

• A. Yes, because when objects appear

  broken in water, they are reflected.

• B. Yes, because all objects can reflect

  light.

• C. No, because objects submerged in

  water do not appear broken.

• D. No, because objects appear broken in

  water due to refraction of light.

Light travels into a camera lens to form a small upside down image on the inside of the camera. Which of the following best describes why the lens flips and decreases the size of the image?

• A. light is refracted by the lens

• B. light is absorbed by the lens

• C. light is reflected by the lens

• D. Light is transmitted by the lens

Tags

NGSS.MS-PS4-2

What is the difference between refraction and reflection?

• A. Light bends when it is reflected and

  bounces off when it is refracted.

• B. Light bounces off when it is reflected

  and bends when it is refracted.

• C. Light travels in curved lines when is

  reflected and straight lines when it is

  refracted.

• D. When light is refracted, it no longer

  travels.

Tags

NGSS.MS-PS4-2

What happens when light strikes a dark heavy object?

• A. Light is refracted.

• B. The light moves quickly through the

  medium

• C. Light energy is absorbed

• D. Light does not strike dark objects

Tags

NGSS.MS-PS4-2