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WorksheetsWatters' Light Test Prep
Total questions: 28
Worksheet time: 17mins
Maya finds a pile of rocks in her backyard. Some of them look cloudy or see-through. She thinks to herself, "This looks transparent!" How can Maya set up an investigation to check if her guess is correct?
Maya can shine a light on one side of the rock and look through the other side to see if any light passes through the material.
Maya can set the item in the sun and wait to see if the sun heats up the object.
Maya can shine a laser on the rocks to see if the laser beam bounces off the rock's surface.
Maya can hold the item up to a heat source and observe a rainbow.
Charlee is testing to see if her softball bat is opaque. She places a light source (flashlight) behind the object, stands near a wall, and turns the flashlight on. "Aha!" she shouts. "I knew that this was an opaque item!" What happened to make Charlee feel so certain that her bat was opaque?
A rainbow appeared on the wall, so Charlee knew the item was opaque.
A reflection appeared on the wall, so Charlee knew the item was opaque.
A shadow appeared on the wall, so Charlee knew the item was opaque.
The bat began to glow with the light from the flashlight, so Charlee knew it was opaque.
True or false: Light can travel through some objects.
True
False
True or False: Some objects absorb light.
True
False
What does reflection mean?
Bounce off
Bend through
To absorb light
To split light into many colors
What does refraction mean?
Bend
Bounce
Glow
Absorb
A transparent object...
Lets all light pass through
Lets some light pass through
Lets no light pass through
Absorbs all light
Rosalina and Brooklyn are canoeing on a calm lake. They stop and let the water become smooth all around them. Rosalina peeks over the side and sees her image reflected back. How can this phenomenon be described?
The water is smooth and shiny, and the surface lets the rays bounce back to Rosalina's eyes.
The water is transparent, and the light from the sun travels through the water.
The water is translucent, and Rosalina can see what is on the other side of the surface of the water.
The water is smooth and cold, and the heatwaves push the image toward the boat.
Efren and Bilal are looking into a fountain at the Mall of Georgia. The surface of the water is not smooth and has tiny waves. Can Efren see his reflection clearly?
No, the surface of the water is not smooth and the reflected light is scattered.
No, the water is not transparent and it absorbs the image.
Yes, water always reflects light very clearly.
Yes, water is always opaque and absorbs all light.
Marina and Sunni fill a clear cup halfway with water. Marina drops a pen into the cup. Both girls are amazed at how the pen seems to bend in the water. How can we use scientific terms to explain this phenomenon?
Light moves fastest through translucent items like a glass cup.
Light moves more slowly through a dense medium like water, and the rays of light refract.
The air pressure squeezes the sides of the pen and it breaks under the water.
Not all of the light that strikes the pen is reflected, so the parts that don't reflect look weird.
Which of the following items would cause light to refract?
Eyeglasses
A piece of stone
Clear plastic wrap
Shiny foil
Which of the following items would cause light to refract?
Magnifying glass
Tissue paper
A wood plank
A squishmallow
Which of the following is the most reflective?
A gold stapler
A fuzzy t-shirt
A wooden block
A blanket
Cal writes '67' on a Post-it Note and places the Post-it Note behind a full glass of water. Why does the '67' appear backwards when viewed through the glass of water?
The water refracts light
The water absorbs light
The water is opaque
The water reflects the light
Prisms refract light and rainbows appear. What is another way to explain this?
Light bends when it travels through the prism, and the different colors bend at slightly different angles.
Light is absorbed when it enters a prism, so the white light goes in but nothing comes out.
Light is reflected in the prism and bounces around so many times that the energy is lost.
All the white light is blocked in the prism and only colorful light can come out.
Which color absorbs the most light energy?
Red
Green
Black
White
Which color reflects the most light energy?
Red
Orange
Black
White
What are shadows?
Black light
The absence of light
An extra patch of bright light
Spots of extra energy
Mark is outside on a hot summer day. He spots a large tree with a shady patch under it. Mark chooses to rest in the shade. He feels comfortable under the tree. Why does Mark feel more comfortable in the shade?
The shade feels cooler because the tree blocks some of the light energy from the sun.
The shade feels cooler because the tree releases cool energy and it helps him cool down.
The shade feels good because Mark has a sunburn.
The shade feels hotter than the sunny patches because the tree is a living thing and Mark is cold.
On a sunny day, the grass appears bright green. Why does the grass appear green?
The grass is absorbing all the green light energy from the sun.
The grass is reflecting all the green light energy from the sun.
The grass is glistening with water droplets that reflect light to the eye.
The grass is warm from the sunlight and the heat transfers an image to the eye.
White light contains which colors?
Red, Blue, Yellow
Red, Orange, Yellow, Green, Blue, Indigo, Violet
Red, Orange, Yellow, Green, Blue, Black
Black light and white light combined.
We see shadows because light travels in a ____________ line.
curved
straight
rainbow
What is happening in this picture?
Reflection
Refraction
Students often use a hand lens to make small objects appear larger. A hand lens makes objects appear larger because the lens—
increases the light’s strength
changes the color of the light
bends light passing through it
converts light energy to heat
A student placed a pencil in a cup of water. The pencil appears broken because light—
always travels in a straight line
bends when it passes through water
makes the water in the glass evaporate
reflects the pencil on the water's surface
Why does the straw appear bent?
light is reflected
light is absorbed
light is turned
light is refracted
