a small area in the center of the atom where most of an atom's mass and positive charge is concentrated
what are nucleus
contains the cells DNA and is the control center of the cell
what is nucleus
a force that slows or stops motion when objects rub together or move past one another
friction
stored energy
potential
a disturbance that transfers energy from one point to another
wave
positively charged particle within the nucleus
what are protons
when plants make their own food
autotroph
the overall force acting on an object
net force
energy that is moving
kinetic
peak or highest point of a transverse wave
crest
a neutral atom that gains or loses an electron which makes it no longer natural
Ions
the site where oxidation respiration takes place
mitochondria
for every action, there is an equal and opposite reaction
newtons third law of motion
how much force you use over time
Work
medium causes the wave to speed up or slow down, making the wave bend running through the air than water
refracted
the first element in the periodic table
hydrogen
site where amino acids are hooked together to make proteins
ribosomes
when an object resists movement by force
inertia
simple machines reduce the amount of force needed to perform a task but does not reduce the amount of energy or work needed to perform a task
conservation of energy
travels through empty space
electromagnetic waves
number of protons + number of neutrons
isotopes
part of cell that uses solar energy to form ATP
chloroplast
inner core spins faster than the outer core causing _______ in which then a magnetic field is created
molten iron to flow
_______ cannot be created or destroyed
Energy
name 3 types of natural light
sun, stars, lightning