the ability to do work is _____
energy
When two forces move in the same direction they will ___
add
definition : the presence and/or flow of electric charges
electricity
a wave transports ______ not matter
energy
what are 3 most common states of matter?
liquid, solid, gas
The SI unit for energy is ____
Joules (J)
When when two equal forces move in opposite direction they will _______
cancel out
______ is the potential difference between two points in a circuit.
voltage
what are the two types of mechanical waves
transverse and longitudinal waves
what state of matter only appears at extremely high temperatures?
plasma
____________ is stored energy due to an object’s position--energy ready to go.
potential energy
The distance of an object travels per unit of time is ___
m/s squared
______ is how difficult it is for electrons to flow through a material
resistance
a _____ is a substance or material that carries the wave
medium
has definite shape and volume
solids
______ is energy of motion.
kinetic energy
The rate at which velocity changes is ________
acceleration
what 3 things do you need to make a simple circuit
energy source, wire, and a load
_______ is how much energy the wave carries. It is the distancefrom rest to crest or rest to trough.
amplitude
definite volume but not shape
liquid
________________ states that the total amount of energy in a system remains constant or conserved.
the law of conservation of energy
_______ is when an object resists change in motion.
inertia
what is used to open and close circuits?
switches
___________ are waves that are capable of traveling through a vacuum (empty space)
electromagnetic waves
no definite shape or volume
gas