Matter
Name the 3 states of matter
Solids, liquids and gasses.
What are all atoms made up of? (name the 3 parts)
Protons, neutrons and electrons.
The study of matter and the effects of force and energy on matter is called what?
Physics.
What are beams of light made of?
Photons.
Sound travels through the air by vibrating what?
Air molecules.
When an object floats it is called what?
Buoyant.
What does the atomic number of each element tell us?
Its number of protons.
State Newton's law that talks about inertia.
An object at rest stays at rest unless acted on by an outside force. An object in motion stays in motion unless acted on by an outside force.
Light travels in what?
Waves. (and straight lines)
What state of matter is the best sound conductor?
Solids.
What is the study of the composition of matter and how it changes?
Chemistry.
What are the electrons in the outermost shell called?
Valence electrons.
What is the force that opposes movement or slows down an object.
Friction.
Light is a form of ___________________ energy.
Electromagnetic
What is the speed of sound through air?
760 miles per hour through air.
What is the definition of matter?
Somthing that has both volume and mass.
What is it called when to or more atoms of different elements combine?
A compound.
What is gravity?
The force that pulls objects toward the center of the earth.
Name the colors of the visible spectrum in order.
ROYGBIV
What are sounds called that are too high for the human ear to hear?
Ultrasound.
When a solid turns into a liquid it is at what point?
It's melting point.
What type of elements on the periodic table are the most naturally-occurring elements?
Metals.
What kind of force is the "center-seeking" force?
Centripetal force.
What are the 3 primary colors of light?
Red, green and blue.
If the frequency of a sound wave is very high, what will the sound be? High or low?
High.