Vocabulary
What do you call objects that do not allow any light to pass through them?
Opaque objects
What makes a pencil look broken when it is placed in a cup of water?
Refraction
Why do you see lightning before you hear thunder?
Light travels faster than sound.
What color coat would help you feel warmer on a cold sunny day- white or black?
Black
What do you call objects that allow some light to pass through them?
Translucent objects
Explain an example of when light reflects and an example of when light refracts.
Reflect- mirror, reflectors, etc. Refract- straw in water, arm in pool, etc.
Explain why it feels cooler when you are sitting in the shade on a hot sunny day.
The sunlight does not hit you so you are not absorbing light energy.
Give two examples of transparent objects.
Answers may vary.
What is the term for when light waves bend when passing from one medium to another?
Refraction
Light can travel through objects. It can also do 3 different things. What are they?
Light can be reflected, refracted, and absorbed.
Explain why a shadow appears on the screen when I place my hand in front of it.
My hand blocks the sun from hitting the whiteboard
Name 2 living things that grow from the ground that make their own light.
What are plants and mushrooms?
What is the term for making something appear larger?
Magnify
What types of objects are best to show a reflection?
Shiny and smooth
Explain what glasses do to the light.
Refract the image to make it clearer.
I shine a light through an object. The light scatters after being transmitted through the object. What type of object is it?
Translucent
What is our main source of light?
the sun
Name 3 man made sources of light.
light bulb, neon signs, flash lights, fire, electronics (tv, cell phone, gaming stations)
You are underwater, wearing goggles. You see a plastic torpedo on the bottom of the pool. The light reflected off the torpedo has to travel through two mediums in order to get to your eye. What two mediums/ media does light travel through?
1. water 2. plastic on goggles
Explain the reason why the girl would use aluminum board while tanning.
The aluminum board allows light to be reflected and make her tan darker and faster.
Name 3 animals or insects that make their own light.
What are fireflies, eels and jellyfish