Light Energy Review with Notes

Which of the following models show how light is reflected? 

Select TWO correct answers.

• An arrow hitting a target

• A tennis ball bouncing off a wall

• A marble rolling down a curved ramp

• A basketball ricocheting off the backboard

• An apple falling from a tree

Tags

NGSS.MS-PS4-2

A 5th grader made this charcoal drawing that was titled , "Boat on a Lake".

What causes the boat to appear to be sitting on top of an upside down boat?

• Absorption of light

• Refraction of light

• Reflection of light

• Transmission of light

A pencil is placed in a cup of water as shown. Part of the pencil is in the water and the other part is out of the water.

 

Which statement best explains the difference in appearance between the two parts of the pencil?

• The light rays refract because the speed of the rays change between the air and water.

• The light rays are absorbed by the water bending the pencil.

• The light rays are reflected by the smooth surface of the water.

• The light rays are transmitted through the pencil as it enters the water.

Answer explanation

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NGSS.MS-PS4-2

Which of these scenarios best demonstrates that light travels in a straight path?

• A monkey reaches out to touch the monkey it sees in a mirror.

• An archeologist uses a magnifying lens to see tiny details on an ancient coin.

• A kid uses a pair of binoculars to observe a hawk flying above the trees.

• A group of campers make shadow animals on the side of a tent with a flashlight and their hands.

Tags

NGSS.4-PS4-2

Which statement BEST describes a difference between reflection and refraction?

• Reflection requires a smooth, shiny surface and refraction requires a rough surface.

• Reflection is light bouncing off an object and refraction is light bending as it move from one medium into another.

• Reflection makes all objects appear the same size and refraction makes all objects appear larger.

• Reflection happens when particles of light vibrate and refraction happens when particles of light remain still.

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NGSS.MS-PS4-2

When white light travels through air and into a prism, it bends and separates into the colors of the rainbow.  In which other situation does light bend?

• When light is transmitted from air into pond water.

• When light travels from the sun through outer space.

• When light hits a painted wall and the wall appears blue.

• When light causes a flipped image appearing in a shiny spoon.

Tags

NGSS.MS-PS4-2

Students make a poster that includes examples of both reflection and refraction. The poster includes the pictures shown. Which pictures are examples of light being refracted?

Select Three correct answers.

• 
• 
• 
• 
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Tags

NGSS.MS-PS4-2

A student shines a beam of light from a flashlight on three different objects.

 

Which of these statements is true about what is demonstrated in the pictures?

• Object 1 is refracting light; Object 2 is reflecting light

• Object 1 is refracting light; Object 3 is reflecting light

• Object 2 is absorbing light; Object 1 is scattering light

• Object 2 is absorbing light; Object 3 is refracting light

Answer explanation

Tags

NGSS.MS-PS4-2

Light travels in a path until it hits an object. Then light can be __________________ such as when it hits a shiny surface like a mirror.

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NGSS.MS-PS4-2

A person observes a fish in a lake. The position of the fish is shown.

Which statement best explains why the observed fish appears to be closer to the surface than the actual fish.

• the light enters the water and exits the water at the same angle.

• The light bounces off of the water and creates a reflected image of the fish.

• 1. When light travels from water into air, the light changes directions.

• 1. When white light passes through the surface of the water, the light separates into colors.