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CHEMISTRY
PHYSICS
VOCABULARY
FORMULAS
SIMPLE MACHINES
100
number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom.
What makes an isotope
100
an object at rest stays at rest until acted upon
What is newton's first law?
100
basic unit of chemical element
What is an atom?
100
a= vf-vi
What is the formula for acceleration?
100
an inclined plane wrapped around a cylinder
What is a screw?
200
they are negative particles surrounding the outside of nucleus
how are electrons arranged in an atom?
200
F=MA
What is newtons second law?
200
a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
What is an lever?
200
mgh
What is the formula for potential energy?
200
simple machine that has a thick end and thin end
What is a wedge?
300
a substance produced or used by a chemical particle
What is chemical shortland?
300
for every reaction there is an equal and opposite reaction
What is newtons third law?
300
an educated guess
What is an hypothesis?
300
d=m/v
formula for density
300
the number of times a machines multiplies the input force
What is mechanical advantage?
400
heterogeneous, homogeneous mixtures
What is the two different types of mixtures?
400
energy is formed from one to another
how does energy change?
400
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
What is a catalyst?
400
mv^2/2
What is the formula for kinetic energy?
400
when to or more simple machines work together
What is an compound machine?
500
if it turns into a whole new substance
when do you know if a chemical reaction is occurring?
500
energy cannot be created or destroyed
What is the law of conservation of energy?
500
negatively charged particle
What is a electron?
500
output/input *100
What is the formula for mechanical energy?
500
like a ramp
What is an inclined plane?