1
The energy of motion.
Kinetic energy.
A space with no matter (no air, no particles)
Vacuum
Which state of matter has the most energy?
Gas
In which state of matter do the particles move fluidly around and slide past each other?
Liquid
Which state of matter has the least amount of energy?
Solid
The transfer of energy through direct contact between particles.
Conduction
The transfer of energy by the movement of fluids (liquids or gases).
Convection
The transfer of energy through electromagnetic waves.
Radiation
The material that a wave travels through (can be solid, liquid, or gas).
Medium
What are the two variables (things) that affect kinetic energy?
Mass and speed
Energy carried by vibrations that travel through air, water, or solids
Sound energy
Potential energy
Wave
Energy stored due to an object's height above ground.
Gravitational potential energy.
A vibration of energy that travels as waves in the electric and magnetic field.
Electromagnetic (EM/light) waves
The height of the wave from the resting position to the peak or the trough.
Amplitude
How does sound change when the amplitude decreases?
The volume decreases.
As wavelength increases, frequency ____________.
When light bends due to changing speed when entering a new medium.
Refraction
How many waves per second.
Frequency
How fast the particles move and how many particles there are.
=speed x number of particles
Sarah held two magnets so that their north poles were touching. The magnets were repelling one another. Then, she moved magnets away from each other without changing their orientations.
Does the magnetic potential energy increase or decrease as she moves them away?
The magnetic potential energy decreases.
You touch a metal spoon that's been sitting in a hot pan and it burns your hand. Which type of heat transfer occurred?
Conduction
What are the two features that impact the amount of energy in a wave?
1. amplitude
2. frequency
Define the Law of Conservation of Energy
Energy cannot be created or destroyed; it can only change forms or be transferred from one system to another.