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WorksheetsLight and Matter Review
Total questions: 63
Worksheet time: 43mins
Why do polished surfaces like a gym floor after waxing reflect light better than before waxing?
They are smoother.
They absorb more light.
They block more light.
They are harder.
Which condition would most improve the visibility of a person through a window at night?
Turning on a bright light inside the building
Turning off all lights inside the building
Using a flashlight to shine on the outside of the window
Covering the window with a dark curtain inside
How does light behave when it hits a rough surface?
It scatters in different directions.
It passes directly through.
It bounces back straight.
It absorbs completely.
Why is the object closest to the window more visible during the day?
Because more light enters the eye from the outside environment
Because there is less light outside
Because the object inside reflects light better
Because the object inside absorbs all light
What happens to light when it reaches the calm lake surface?
It reflects clearly.
It scatters.
It diffuses.
It absorbs.
Why do we see a clear reflection in a calm lake but not in a windy lake?
The surface is smoother when calm.
The water color changes.
The light is brighter.
The water is colder.
What effect does a rough surface have on light reflection?
It causes scattering.
It makes the light disappear.
What can be concluded about light and vision from class investigations?
Light conditions alter how we see reflections and objects through glass.
Reflections will always be the same regardless of light conditions.
We see better in the dark with no light source inside.
Objects inside are always less visible than reflections.
What is the main difference between light reflection on a smooth and rough surface?
Smooth reflects light in one direction, rough scatters in many.
Smooth absorbs light, rough reflects it.
Smooth blocks light, rough lets it through.
Smooth heats up, rough cools down.
Why does a glass window sometimes act like a mirror?
The light levels outside are much higher than inside.
The glass absorbs light from outside.
The glass changes its structure based on temperature.
There’s an extra reflective coating on the glass.
How does light travel when it reflects off a very smooth surface?
In a V shape, uniformly
In a zigzag pattern
Randomly
Straight through
How important is the role of evidence in science class discussion?
Very important because it supports our ideas
Not important, we don’t use much evidence
Somewhat important, but not necessary
Which could be a reason some surfaces cause mirror reflections?
They have very smooth surfaces that reflect light uniformly.
They absorb most of the incoming light.
They scatter light in all directions.
They only reflect light at specific angles.
What is the scientific term for light bouncing off a surface?
Reflection.
Absorption.
Transmission.
Diffraction.
Why do some surfaces appear shiny and can even blind us?
Because they reflect light in a smooth, mirror-like manner.
Because they absorb all the light, leaving no reflection.
Because they scatter light in all directions, creating a blur.
Why might the same lake look different on a calm day versus a windy day?
On a windy day, the lake's surface scatters light in many directions, making it look rougher.
The water's chemical composition changes with the weather, affecting its appearance.
Fish in the lake are more active on windy days, changing the lake's color.
What happens to light when it reflects off a very smooth surface?
It scatters in all directions.
It is absorbed by the surface.
It reflects at the same angle as it hits the surface.
It changes color.
What happens when light reflects off a smooth surface like polished steel?
It scatters in many directions, reducing glare.
It is completely absorbed by the surface, creating a matte effect.
All the light reflects in the same direction, creating a glare.
How does making a surface rougher affect its appearance and interaction with light? Support your claim with evidence and reasoning.
It becomes shinier and reflects more light directly.
It appears duller and causes light to scatter, reducing glare.
It absorbs all the light, making the surface look completely dark.
What happens to light when it reaches the surface of the lake on a calm day, allowing you to see a clear reflection?
The light is absorbed by the water, preventing any reflection from occurring.
The light reflects off the smooth surface of the water, creating a clear reflection of the mountains.
The light scatters in all directions due to the wind, making the reflection blurry.
What can be concluded about the relationship between light conditions and the one-way mirror phenomenon?
The phenomenon is stronger when light conditions on both sides of the mirror are the same.
The phenomenon does not depend on the light conditions but on the angle of viewing.
Light conditions greatly influence the effectiveness of the one-way mirror, with a distinct difference needed for it to work.
Why do surfaces like a calm lake or a waxed gym floor appear shiny and can sometimes 'blind' us?
These surfaces appear shiny because they are always wet, making them reflective.
Surfaces appear shiny and blinding due to their smoothness, reflecting light directly.
Only natural surfaces like lakes can appear shiny, while artificial surfaces cannot.
Describe how the light would appear on the shiny metal table compared to the wooden table.
The light would appear brighter on the shiny metal table.
The light would appear dimmer on the shiny metal table.
The light would appear the same on both tables.
The light would not reflect on the shiny metal table.
Why does the metal table reflect light better than the wooden table?
Because metal is smoother and more reflective
Because metal is denser than wood
Because wood is a better conductor of heat
If you wanted to read a book using the reflected light, which table would you choose?
Table near the window
Table under a lamp
Table in a dark corner
Table with a candle
Predict what you would see in the smooth mirror compared to the rough mirror.
A clear reflection in the smooth mirror and a distorted reflection in the rough mirror.
A distorted reflection in both mirrors.
No reflection in the smooth mirror and a clear reflection in the rough mirror.
No reflection in either mirror.
Which material might be the best to reflect sunlight toward the solar panel throughout the day?
Aluminum foil
Wood
Glass
Plastic
Why do we see a clear reflection in a calm lake but not in a windy lake?
The surface is smoother when calm.
The water color changes.
The light is brighter.
The water is colder.
What effect does a rough surface have on light reflection?
It causes scattering.
It makes the light disappear.
It doubles the reflection.
It darkens the surface.
What can be concluded about light and vision from class investigations?
Light conditions alter how we see reflections and objects through glass.
Reflections will always be the same regardless of light conditions.
We see better in the dark with no light source inside.
Objects inside are always less visible than reflections.
What is the main difference between light reflection on a smooth and rough surface?
Smooth reflects light in one direction, rough scatters in many.
Smooth absorbs light, rough reflects it.
Smooth blocks light, rough lets it through.
Smooth heats up, rough cools down.
What is the scientific term for light bouncing off a surface?
Reflection.
Absorption.
Transmission.
Diffraction.
Frosted glass and wax paper are examples of which type of material?
translucent
transparent
opaque
clear
What is a wall?
Transparent
Translucent
Opaque
what causes a rainbow?
Refraction
Reflection
Transmission
When light bounces off of an object, it____________
Refracts
reflects
transmits
What causes what you seen in the picture?
Reflection
Refraction
Transmission
Which is opaque
air
water
wooden table
What is the dependent variable (effect) in this experiment?
"Do tall people jump further than short people?"
height of the person
weight of the person
how fast the person runs
how far the person jumps
What is the independent variable (cause) in this experiment?
"Which type of metal, copper or aluminum, conducts heat faster?"
size of metal
types of metal
time it takes to heat up
shape of the metal
Which variable is NOT a constant in this experiment?
"Is Bounty paper towels more absorbent than Sparkle paper towels?
the size of paper towel
the amount of water for the paper towel to absorb
amount of water the paper towel absorbed
the shape of paper towel
What is the independent variable (cause) in this experiment?
"Will fish school or group together more if a predator is present?"
whether there is a predator or not
number of fish school together
type of predator
type of fish
Ariel wanted to find out if thingamabobs or thingamajigs were better for brushing her hair. What is the independent variable in this situation?
What Ariel used to brush her hair
How well her hair was brushed
The shampoo she uses
How often she brushes her hair
A factor or condition that is kept the same is called the
control variable
dependent variable
independent variable
Which of the following models shows only light reflecting off an object?
Which of the following models shows only light transmitting through an object?
Which of the following models shows light being both reflected and transmitted?
Translucent
What path of light allows us to see the vehicle in the reflection?
The sun reflects off of the vehicle, then reflects off of the glass into our eyes.
The sun reflects off of the vehicle into our eyes.
The sun shines into our eyes, on the vehicle, then onto the window.
The sun reflects off of the vehicle, then reflects off of the person into car window.
What path of light causes you to see the child in this image?
Sun reflects off car to window, reflects off glass into your eye
Sun transmits through window, reflects off child, transmits through window into your eye
Sun transmits through window, transmits through child.
Why do you see the child more clearer than you see the vehicle?
There is more light entering my eye from the child than the vehicle so my brain processes that signal.
There is more light entering my eye from the vehicle than the child so my brain processes that signal.
I was looking directly at the child and not the car so my brain puts that in focus.
What path of light allows us to see the taxi in the reflection?
Sun reflects off of taxi which reflects off of glass into your eye
Sun reflects off of the taxi directly to your eye.
The taxi headlights are shining in your eye.
The sun transmits through the glass and back to your eye.
What path of light causes you to see the man in this image?
Sun reflects off car to window, reflects off glass into your eye
Sun transmits through window, reflects off man, transmits back through window into your eye
Sun transmits through window, transmits through man to his paper.
Why do you see the man more clearer than you see the taxi?
There is more light entering my eye from the taxi than the man.
The man is closer to the window than the taxi.
There is more light entering my eye reflecting off the man than the taxi.
What path of light causes you to see the woman in this image?
Sun reflects off window into your eye
Sun transmits through window, reflects off woman, transmits back through window into your eye
Sun transmits through window, transmits through woman to her phone.
Sun reflects off of window onto the woman, onto the phone, into our eye.
Why do you see the woman more clearer than any other object?
There is more light entering my eye from her phone so my eye sees her more.
The woman is closest to me so my brain sees her first.
There is more light entering my eye reflecting off the woman than any other object.
What tool would we use to measure light?
Calculator
Lux Meter
Ruler
A Scale
What is a One-Way Mirror made of?
Same as a Window, just Glass
It is a mirror on one side and a window on the other
It is made with a full backing of silver
It is part 'glass' and part 'silver'
What happened when we shined the flashlight on the mirror?
It transmitted more light
It reflected more light
It reflected and transmitted the same amount of light
It neither reflected or transmitted light
What happened when we shined the flashlight on the Window/Glass?
It transmitted more light
It reflected more light
It reflected and transmitted the same amount of light
It neither reflected nor transmitted light
What is NOT a way to support a claim?
Provide Data
Provide Evidence
Give good Reasoning
Rely on your opinion
Why do our eyes dilate (or get bigger)?
Our Eyes get scared
To let in more light
To stop light from getting in
So people can tell what color our eyes are
