Energy
Energy cannot be created nor destroyed; it can only be converted from one form to another or transferred from one object to another.
What is the Law of conservation of energy?
A wave in which the medium vibrates parallel to the direction the wave travels.
What is a longitudinal wave?
The angle of reflection equals the angle of incidence.
What is the law of reflection?
The rate of flow of electrons moving past a fixed point in an electrical circuit.
What is an electric current?
The sum of all water on a planet.
What is the hydrosphere?
The ability to do work.
What is energy?
A wave in which the medium vibrates perpendicular to the direction the wave travels.
What is a transverse wave?
When light (or sound) waves bounce off an obstacle.
What is reflection?
Charging an object by rubbing two items together so that electrons transfer from one item to the other.
What is charging by friction?
Solid, naturally occurring, inorganic substances that have a definite chemical composition and a crystalline structure.
What are minerals?
The amount of work done each second.
What is power?
An indication of how high or low a sound is, which is primarily determined by the frequency of the sound wave.
What is pitch?
Light waves that vibrate in only one plane.
What is polarized light?
A material's ability to oppose the flow of electric current.
What is resistance?
Small, solid fragments of rock-like gravel, sand, silt, mud, or clay.
What is sediment?
The product of a force (applied in the direction of motion of an object) and the distance the object moves.
What is work?
A disturbance in matter that transfers energy through the matter.
What is a mechanical wave?
A transverse wave composed of oscillating electric and magnetic fields that are perpendicular to each other and to the direction the wave travels.
What is an electromagnetic wave?
A circuit that does not have a complete connection between the two sides of the power source; as a result, current does not flow.
What is an open circuit?
Any process that breaks down rocks and creates sediment.
What is weathering?
Energy that is stored as a result of position or shape.
What is potential energy?
Any speed that is faster than the speed of sound in the medium of interest.
What is supersonic speed?
The electromagnetic waves with the longest wavelengths.
What are radio waves?
Charging an object by allowing it to come into contact with an object that already has an electrical charge.
A series of processes in which forces within the Earth and at the surface cause rocks to continuously change from one type to another.
What is the rock cycle?