An object at a high point or an object about to move or fall has this type of energy.
What is potential energy?
True or False: Gravity is a FORCE
True! Gravity is an invisible force that pulls objects toward one another.
The energy that is produced by the vibrations of electrically charged particles (photons) is what type of energy.
What is light?
True or False: Light Energy is energy made out of PHOTONS (tiny particles of light)
True!
Photons are tiny particles of light that our eyes can detect.
ONE WAY that Sound Energy and Light Energy are different from each other is __________
Light can travel through MATTER and SPACE, but Sound can only travel through MATTER
You can see Light, but not Sound
Light is made out of ELECTROMAGNETIC WAVES, and Sound is made out of MECHANICAL WAVES
The energy of motion (depends on mass and velocity).
What is kinetic energy?
The force of attraction between two objects that is due to their masses and distance between them.
What is gravity?
The type of heat transfer made through DIRECT CONTACT between two objects.
(CONDUCTION, CONVECTION, or RADIATION)
What is Conduction?
When light BOUNCES OFF of an object, it is known as _______.
(REFLECTION, TRANSMISSION, REFRACTION, or ABSORPTION)
What is reflection

Sound waves must travel through __________________ in order for us to hear sound.
What is matter (a medium)?
Sound waves travel between molecules of matter, causing them to vibrate, which is the sound we hear!
True or False: "Energy" is the ability to DO WORK, MAKE THINGS MOVE, or cause CHANGES IN MATTER.
True!
True or False: The GREATER the mass an object has, the MORE Gravitational Potential Energy it has.
True!
Objects with bigger masses require more energy to fall towards the ground.

The type of heat transfer which travel through invisible WAVES through matter and space.
(CONDUCTION, CONVECTION, or RADIATION)
What is radiation?
When light STOPS at an object, and no light bounces off or passes through.
(REFLECTION, TRANSMISSION, REFRACTION, or ABSORPTION)
What is absorption?

A wave that must have a medium.
What is a mechanical wave?
The energy of an object in MOTION is called what?
Kinetic Energy
The amount of matter that makes up an object determines this.
What is mass?
The type of heat transfer made through the movement of FLUIDS (liquids or gasses).
(CONDUCTION, CONVECTION, or RADIATION)
What is convection?
When light goes STRAIGHT THROUGH an object, this is known as _________
(REFLECTION, TRANSMISSION, REFRACTION, or ABSORPTION)
What is transmission?

Created by vibrations of matter that result in the transfer of energy.
What is sound?
The energy STORED inside of an object due to its position is called what?
Potential Energy
A measure of the gravitational force exerted on an object.
What is weight?
The total energy of moving particles that make up an object (often called heat) is this type of energy.
What is thermal energy?
When light goes THROUGH an object and BENDS at an angle.
(REFLECTION, TRANSMISSION, REFRACTION, or ABSORPTION)
What is refraction?

The speed in which sound travels.
What is FREQUENCY?
(High pitched noises have quick frequencies.
Low pitched noises have slow frequencies.)
