Light 1
Name 1 Source of Natural Light
Sun, Moon, Stars
What color of clothing should you wear on a hot, sunny day and why?
Light-colored clothing, like white, because it reflects more sunlight and absorbs less heat.
Why do we see lightning before we hear thunder?
Because light travels faster than sound.
Light moves in...
Transverse waves in a straight line.
Do nocturnal animals have smaller or larger pupils?
Larger.
Name 1 manmade source of light
Light bulbs, smart board, tv, cell phone
Is a tissue box transparent, translucent or opaque.
Opaque.
How does a mirror work to show your reflection?
It reflects light back in a regular way, so the image of whatever is in front of it bounces back to your eyes.
Why do we see objects as a certain color?
Because they reflect that color of light and absorb the other colors. For example, a red apple reflects red light.
Are sunglasses translucent, transparent, or opaque?
Translucent.
Which pathway of light bends light?
Refraction
What is the difference between transparent, translucent, and opaque materials?
Transparent lets light pass through clearly (like glass), translucent lets some light through but scatters it (like frosted glass), and opaque blocks all light (like wood).
Why does a full moon appear white to us on Earth?
The moon reflects all of the sun's light.
What is the name of the spectrum that visible light is in the middle of?
Electromagnetic
What causes a shadow?
The light being blocked.
What happens when light passes through a concave lens?
It spreads out or diverges the light rays.
How do sunglasses protect your eyes from the sun’s light?
They block some light and filter out harmful ultraviolet (UV) rays.
Why is it hard to see at night?
Without a light source, objects cannot reflect light towards our eyes.
Why do we need light to see?
Because light bounces off objects and into our eyes, allowing us to see their shape and color.
If you are standing in the shade under a tree, why can you still see all around you?
The sun's light is not a single beam of light, it spreads outward in straight paths in all directions.
Why can't we see in a dark room even if our eyes are open?
Because there is no light to reflect off objects and enter our eyes.
Would the sun in the sky be high or low if a shadow is long and narrow?
Low in the sky.
A pencil looks bent when you place it in a glass of water. Why does this happen?
Because light bends (refracts) when it moves from air to water, making the pencil appear bent.
What happens to light with snow? Why is it so bright in the winter?
Reflection, the light bounces of the snow causing brightness.
If you shine white light through a prism, what happens and why?
The light splits into a rainbow of colors because each color bends differently—this is called dispersion.