Adding & Subtracting Energy
How hot or cold something is.
What is temperature?
Characteristics that can be observed or measured; for example, color, melting point, and conductivity.
What are physical properties?
This kind of energy is produced by vibrating objects and can only move through matter.
What is sound energy?
The pathway through which electrical current flows .
What is a circuit?
Any object that has a reflective surface.
What is a mirror?
Anything that has mass and takes up space.
What is matter?
A combination of two or more substances in which each keeps its own properties and both can be easily separated.
What is a mixture?
Our bodies use energy to do work such as running or jumping hurdles on a race track.
What is Mechanical Energy?
Material that allows electric current to flow through easily.
What is a conductor?
A device that gives off a very strong and directed beam of light .
What is a laser?
Increase heat energy; molecules move faster.
What is heat?
To spread out evenly in a liquid.
What is dissolve?
The faster an object’s molecules move, the hotter the object becomes, and the more of this kind of energy it has.
What is thermal or heat energy?
Material that slows down or stops electric current from flowing.
What is an insulator?
Energy waves bouncing off the surface of an object.
What is reflection?
To guess before it happens.
What is predict?
A liquid mixture in which one substance is mixed evenly throughout another substance.
What is a solution?
Radiant energy that our eyes can see from the visible part of the electromagnetic spectrum.
What is visible light?
To move or travel smoothly in a certain direction.
What is flow?
The small part of the electromagnetic spectrum that the human eye can see; violet, blue, cyan, green, yellow, orange, and red.
What is visible light?
To change from a solid, liquid, or gas to another state, such as an ice cube melting.
What is change of state?
A change to a substance without forming a new substance, such as changing size or state of matter.
What is a physical change?
Energy that causes a change in temperature between materials.
What is heat or thermal energy?
Magnetism created by an electric current; examples are an MRI and electric motor.
What is electromagnetism?
A clear piece of curved glass or plastic that bends passing light to focus or spread the light rays .
What is a lens.