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WorksheetsIQWST PS1 Light waves Learning set 2 & 3
Total questions: 70
Worksheet time: 36mins
What determines whether an object will scatter or reflect light?
The object's temperature
The object's surface texture
The angle of incidence
The angle of reflection
Why can't you see yourself in a piece of wood?
The wood absorbs all of the light.
The wood scatters light.
The wood reflects light.
The wood transmits light.
Why can you see yourself in a mirror?
The smooth surface reflects the light in a perfect pattern.
The smooth surface scatters the light in a perfect pattern.
The smooth surface scatters the light in all directions.
The smooth surface absorbs all of the light.
The angle of incidence...
is bigger than the angle of reflection.
is smaller than the angle of reflection.
is equal to the angle of reflection.
has nothing to do with the angle of reflection.
If the light is scattering, what surface is probably bouncing the light?
Window
Mirror
Sunglasses
Wood
Transmission of light...
is light passing through an object.
is light bouncing off an object.
is light changing speed when it hits something.
is light being turned into heat energy.
When light is absorbed,...
the light is reflected from the object.
the light energy is changed into heat energy.
the light is bent when it passes through an object.
the light is scattered when it hits an object.
On a hot day, which would you choose to walk across barefoot?
Why is a road hotter to walk across than the other surfaces?
The road reflects the most light back to your feet.
Because it is black, the road aborbs the most light and the absorbed light turns into heat energy.
The road gets hot because of the exhaust from cars.
The road isn't hotter than other surfaces, they are all the same because they get the same amount of light.
Which diagram best explains what happens when light hits tinted windows?
Which diagram shows what happens when light hits a piece of wood?
Which image shows what happens when light hits a piece of thin fabric?
If a flashlight is placed in position 2 and light is bounced off a mirror, at which position would you expect to get the highest reading from your light sensor?
Position 1
Position 2
Position 3
Position 4
When a flashlight is in position 4 and the light is bounced off a piece of paper, in which position would you expect to get the highest light sensor reading?
Position 4
None, light doesn't bounce off paper.
None, light bounces off paper and scatters pretty evenly to all positions.
Position 3
T/F Transmission of light occurs when light strikes a mirror.
True
False
________occurs when light hits an object & then bounces off in many directions.
Transmission
Reflection
Scattering
Absorption
Tissue paper, computer paper, & tinted windows are all considered_______________.
Transparent Objects
Opaque Objects
Translucent Objects
All of these
What's happening to light in the middle picture?
The light is bouncing off in the outside direction.
The light is striking the object & going all over the place.
The light is striking the object & the light is stopping.
The light is going through the object.
What is occurring in the picture?
Scattering
Reflection
Transmission
Absorption
_______is term used to measure light the coming from an object.
Lux
Newtons
Qualitative
Quantitative
_________do not let light penetrate or pass through them.
Observable Objects
Opaque Objects
Translucent Objects
Transparent Objects
T/F the dark sweater is a good example of a transparent object.
True
False
The sheet of paper is considered a ___________object because it let's some light pass through it.
Opaque
Transparent
Translucent
All of these
What happens when light strikes the black panels of the Rudd water heater?
The light is reflected.
The light is absorbed.
The light is scatted
None of these
The above diagram shows that ____
Light is reflected
Light has speed
Light travels in a straight line
What does it mean -
transparent
An object or material that allows light to pass through easily.
An object or material which doesn’t allow light through.
An object or material which allows some light to pass and scatters light rays.
To make an image larger.
The total amount of light equals
The amount reflected + transmitted
The amount reflected + the amount absorbed + the amount transmitted.
The amount reflected
The amount transmitted
What is the light doing in this photo?
Scattering
Transmitting
Absorbing
Reflecting
What is the light doing in this photo?
Scattering
Transmitting
Absorbing
Reflecting
What is the light doing in this photo?
Scattering
Absorbing
Transmitting
Transmitting
What is light doing in this photo?
Scattering
Absorbing
Reflecting
Transmitting
Objects vary in how they transmit light. Objects like air, water and, clear glass, allow light to travel through them are called _______________________.
Transparent
Translucent
Opaque
Transmit
Materials like frosted glass and some plastics are __________________________.
Transparent
Translucent
Opaque
Transmit
______________________ objects block all light traveling through them. Some examples would be wood, stone, and metals.
Transparent
Translucent
Opaque
Transmit
When light hits an object, the light rays can transmit, reflect and get absorbed at the same time.
True
False
Solar energy is an excellent source of energy because it creates little to no pollution and is plentiful.
True
False
Solar energy is used to generate electricity.
True
False
Optical fibers work because the light inside of them is scattered by the glass within the fiber.
True
False
Smoothing out the bumps and ridges on an object with a rough surface is called polishing.
True
False
Which of the following objects would absorb the most light and heat up the most if the sun was shining on them for one hour?
Concrete sidewalk
Asphalt driveway
Retention pond
Grass in your yard
Which of the following objects could you see your reflection in?
Piece of paper
Your workbook
Wooden desk
Window
Select all that apply: Why do buildings in warm weather climates have windows with reflective glass?
More light could be absorbed by the objects in the room.
To reduce the temperature of the room.
More light hitting the window would be transmitted through.
More of the light hitting the window would be reflected away.
The energy carried by the light from the sun is called
steam energy
water energy
solar energy
wind energy
Most electricity in the United States is produced by
nuclear power plants
burning coal
wind turbines
solar power
If a mirror is scratched completely up it will ______________more of the light that hits it.
reflect
absorb
scatter
transmit
A machine with giant fan blades inside that turn to generate electricity is a(n)
water wheel
electric fan
steam turbine
generator
Tiny plastic or glass strands that glow with tiny light are called_____________.
optical fibers
flood lamps
glow sticks
flashlights
What are optical fibers used for?
Fun lamps.
Make it possible for televisions to get hundreds of channels.
Make surgery much safer for patients.
All of the above.
What color of light appears when mixing green and red light on a white screen?
White
Black
Brown
Yellow
What color of light will you see when red light, green light and blue light all overlap at 100% intensity?
White
Black
Gray
Pink
What amount/intensity of red, green, and blue light would give you black?
0%
25%
50%
100%
The ______________, in the back of the eye, contains cells that are sensitive to light.
iris
retina
pupil
lens
What are the types of cells found in the retina? Select all that apply.
Rods
Epithelial Cells
Stem Cells
Cones
Optic Nerves
____________________ cells respond to colors
Rods
Cones
Optic nerve
Stem
epithelial
____________________ cells respond to brightness
Rods
Cones
Optic nerve
Stem
epithelial
What are the colors of light that the cone cells in the retina are sensitive to? Select all that apply.
red
orange
yellow
green
blue
We see color because__________
objects reflect or scatter a certain color while absorbing all the other colors and our eyes respond to mixtures of red, green, and blue light.
objects reflect or scatter color and our eyes respond to yellow, red, and blue light.
objects reflect or scatter color and our eyes respond to all colors of visible light.
objects absorb color and then reflect or scatter that absorbed color back and our eyes respond to mixtures of red, green, and blue light.
What is white light?
Light that makes black-light posters glow, and is responsible for summer tans and sunburns.
Light that we can not see with our eyes, but can sometimes feel on our skin.
A mixture of different colors of light that you can see.
A mixture of different colors of light that you can not see.
The bending of light is called ______________.
Reflection
Transmission
Diffraction
Absorption
Which of the following statements are true about how rainbows form? Select all that apply.
The light enters a raindrop and is then transmitted through the far side of the raindrop.
The reflected light that leaves a raindrop moves in different directions, and each color moves in a predictable direction.
The refraction and reflection of the light by the raindrops causes the colors to spread out to create a semicircle of colors in the sky.
The light enters the raindrop and is then bent and reflected back out the same way it entered.
In order to see a rainbow the sun needs to be in front of you
When white light hits a black object this happens.
all of the light transmits
all of the light scatters
all of the light combines to make a darker cooler
most of the light is absorbed and some of it scatters
When white light hits a white object this happens.
all of the light combines to make a darker color
all of the light scatters
a lot of the light is scattered and a little bit is absorbed
all of the light is absorbed
If a blue light is shined on a red object, that object will appear ____________________________ to us.
Black
White
Green
Red
Blue
If a blue light is shined on a blue object, that object will appear ____________________________ to us.
Black
White
Green
Red
Blue
When white light shines on a banana, the banana looks yellow. Why does the banana look yellow to us?
The banana absorbs the white light making the banana shine yellow.
The banana scatters only yellow light and absorbs the rest of the light.
The banana absorbs only the yellow light.
The banana gives off its own yellow light.
When white light shines on an orange, the orange looks orange. Why does the orange look orange to us?
The orange absorbs the white light making the orange shine orange.
The orange scatters only orange light and absorbs the rest of the light.
The orange absorbs only the orange light.
The orange gives off its own orange light.
When white light shines on an blueberry, the blueberry looks blue. Why does the blueberry look blue to us?
The blueberry absorbs the white light making the blueberry shine blue.
The blueberry scatters only blue light and absorbs the rest of the light.
The blueberry absorbs only the blue light.
The blueberry gives off its own blue light.
