Momentum
momentum is a vector of quantity, it has ____ and _____
magnitude and direction
Waves that require a medium to travel are called ____
Mechanical waves
a device that has a magnet on a needle that spins freely is called a _____
compass
what is the symbol for hydrogen
H
what is earth's natural way of reusing water
the water cycle
Momentum can be defined as "mass in motion." all objects have mass; so if an object is moving, then it has ____
Momentum
the material that a wave travels through is called a _____
medium
the relationship between electricity and magnetism is called _____
electromagnetism
what element does Ag stand for
silver
what is the third step in the water cycle
condensation
the amount of momentum that an object depends on 2 variables; how much its ____ and how fast its ____
moving
a repeated back and forth or up and down motion is called a ______
vibration
what is the most magnetic material?
lodestone
what is the symbol for gold
Au
what is it called when a liquid turns to a gas
evaporation
Momentum depends on 2 variables ______ and _____
mass and velocity
the high point of a transverse wave is called the _____
crest
it regenerates the north and south pole as 2 smaller magnets
how many periods are on the periodic table
7
what are the 2 most common forms of precipitation
rain and snow
Momentum = _____x_____
mass and velocity
the low part of a wave is called the _____
trough
what are the 2 ends of a magnet
north and south pole
how many elements are on the periodic table
118
how many steps are in the water cycle
4