Sci Processes
A prediction about the outcome of an experiment
Hypothesis
Particle model of matter
Matter is made of atoms
Two main types of waves
Transverse and longitudinal
How to calculate average speed
Distance divided by time
The idea that the earth is the center of the universe:
Geocentrism
Data involving general observations
Qualitative
The smallest unit of matter
Atom
A wave that only travels through matter
Mechanical wave
Definition of acceleration
Change in speed or direction (velocity)
The order of the planets of the solar system, starting from the sun and moving outwards:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
450cm = ________m
4.5m
Three main parts of an atom (subatomic particles)
Protons, electrons, and neutrons
Waves that do not need a medium to transmit energy
Electromagnetic waves
1st law of motion
An object at rest will stay at rest, an object in motion will stay in motion at a constant velocity unless acted upon by unbalanced forces
What the sun is mostly made of
Hydrogen and helium
The thing you change in an experiment
Independent variable
A substance that contains one type of atom
Element
The order of the EMS from longest waves to shortest
radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays
third law of motion
For every action on an object, there is an equal and opposite reaction
When a very large star is overcome by gravity and suddenly explodes
Supernova
A detailed explanation for a large set of observations
Scientific model
A subset of an element with a particular atomic mass (number of neutrons)
Isotope
The photoelectric effect
When high-frequency light strikes metal, it frees electrons, producing an electrical current
Law of conservation of momentum
The total momentum in a closed system always remains the same, though it can be transferred to other objects
The very center of a black hole
Singularity