Mod 5 lesson 2 Flashcards
Transparent
Transparent: when light can pass through an object
Refraction
Refraction: occurs when light waves travel through a transparent medium causing them to bend and change direction
Reflection
Reflection: occurs when light waves collide with a medium causing the light waves to bounce off
Properties of light
Properties of light: the many ways light waves interact with a medium, including reflection, refraction, and absorption
Matter waves
Matter waves: waves that move through particles of matter, including sound waves and water waves
Absorption
Absorption: occurs when light waves strike a medium and are taken into the material; the waves are neither reflected or refracted, nor are they allowed to pass through the material to the other side
Light waves are a form of _______ radiation.
electromagnetic
The more ______ the material, the more the light waves will slow down and refract.
dense
Which type of wave would travel faster through air: light or sound?
Light waves
Why are matter waves different from electromagnetic waves?
matter waves need to collide with particles of matter in the form of a solid, liquid, or gas to travel from one place to another.
What are some examples of Matter waves?
Sound and water waves
Sound waves cannot travel through the vacuum of outer space
True or False
True
Why do you see lightning first and then hear thunder later?
Light waves travel faster than sound waves because they do not need to collide with particles as they are electromagnetic waves.
Light waves travel in _____waves similar to a snake slithering back and forth. As they move through a material, the waves may change speed and/or direction.
transverse
Sound waves are considered ______waves. As they move through a material, they cause the particles in the material to bump into each other. The particles compress together and then relax back to their normal position as the waves pass.
compressional
