Mirrors
What are the 3 types of mirrors?
Plane mirrors, concave mirrors, and convex mirrors
What is reflection?
The throwing back by a body or surface of light, heat, or sound without absorbing it.
How does a real image form?
When rays actually meet.
How can you represent light waves?
Straight lines called rays
What is another way to say water?
What is H2O
What type of mirror is a flat sheet of glass that has a smooth, silver-colored coating on one side?
A plane mirror
What are the two ways a surface can reflect light?
Regular reflection and diffuse reflection
An image is a copy of what?
An object formed by reflected or refracted rays of light.
Is light an electromagnetic wave?
YES
Does wood or metal have more friction?
What is wood
What are the characteristics of a convex mirror?
A mirror w/ a surface that curves outward
True or False:
When parallel rays of light hit a smooth surface, diffuse reflection occurs?
False
Is the image you see in a plane mirror a real or a virtual image?
Virtual image
What is refraction?
The displacement of light rays
Name 3 things dry ice is useful for?
(Each answer is worth 100 pts.)
Flash-freeze food, carbonate beverages, and make ice cream
A mirror with a surface that curves inward like the inside of a bowl is a...
Do light rays obey the laws of reflection?
Yes!
What is a virtual image?
A virtual image is an image formed when the outgoing rays from an object always diverge.
True or False, When a ray of light passes from one medium to another, the light undergoes a change in direction?
True
Who discovered cobalt (chemical element)?
Who is Georg Brandt
Why are objects smaller in convex mirrors?
Because the rays never meet
What happens when parallel rays of light hit a bumpy or uneven surface?
Diffuse reflection occurs.
True or false, concave mirrors can only form virtual images.
FALSE
What is a ray box?
A lamp in a box containing a narrow slit that emits rays of light that is used to investigate light rays.
What do earthquakes cause?
(Each answer is worth 100 pts.)
Ground shaking, ground rupture, landslides, tsunamis, and liquefaction of soil