In Greek, the word “Physics” literally means
Nature
The study of movement
Forces and energy
Motion and matter
True or False: UV-B causes premature wrinkles and goes deep into your skin.
False (It's UV-A)
What is refraction?
Light is bent from its normal course but isn't reflected
Light is projected from a source but is not visible
Light is really pretty but too bright to look at
List the 3 primary colors of light:
Black, white, and gray
Cyan, Magenta, Yellow
Red, yellow, blue
Red, Green, Blue
What makes a rainbow show all the colors?
Drops of water act as prisms
Dust particles act as refractors
Unicorns act as a rainbow horse army
Light wavelengths act as projectors
Why is the sky blue?
Ice particles high in the atmosphere look blue- they're cold
Smaller blue light waves scatter off gas and dust particles
Ocean water reflects its blue color up to the atmosphere
Because God likes the color blue the best.
Light passes through glass because the molecules vibrate & pass those vibrations to neighboring atoms through the substance. This is called:
Reflection
Absorption
Retransmission
What happens to the electrons in an object when light reflects off of it? They...
vibrate in the same spot which sends waves of light out
suck energy from the air to return to their original levels
fall down to original energy level, releasing light energy
On a flat mirror, what is the "incoming" ray and the "outgoing" ray?
Refracting, Disappearing
Incident, reflecting
Long, short
Reflecting, incident
If a mirror or lens is not curved, it is called __________.
Convex
Frosted
Concave
Flat
The _______________ wants everything to be the same and is surprised when everything is different
Physicist
Chemist
What is interference?
When someone gets in your way
When light blocks the path of a spaceship
When light rays try to reflect but run into each other
When light rays try to refract but get lost in the medium
What is it called when light bounces off an object, causing us to be able to see it?
Projection
Refraction
Reflection
Interference
Choose the best statement about how light affects our ability to see objects.
Light is merely an illusion; you are seeing brain impulses.
Light only flows directly from the sun into our eyes.
Light has to reflect off objects & physically enter our eyes
Light has to refract through glass first, then enter our eye
List the 3 primary colors of pigment
Cyan, Pink, Indigo
Magenta, Yellow, Cyan
Violet, Red, Orange
Red, yellow, blue
What happens to the electrons in an object when light hits it?
Electrons get hyper and vibrate but don't move to new levels
Electrons decrease in energy and fall down energy levels
Electrons increase in energy and jump up energy levels
When light interacts with GLASS, what 3 things can occur? (see p 10 in guidebook)
Retransmission, Absorption, Reflection
Refracting, Running, Interfering
Melting, Breaking, Shining