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Light/Sound/Motion

Energy Vocabulary

TermDefinition
reflection the bouncing of sound or light off an object
frequency the number of vibrations per second
pitch how high or low a sound is
volume the loudness or softness of a sound
amplify to enlarge, expand or increase the volume of a sound
echo a repetition of sound by the reflection of sound waves from a wall, mountain, or other obstructing surface.
vibration the movement of sound waves through a gas, solid or liquid that creates sound
absorb to take in or soak up
medium a substance that occupies space like a solid, liquid or gas
sonar a method or device used for locating objects underwater using sound waves
opaque material that does NOT allow light to pass through
translucent material allowing SOME light to pass through
transparent material that allows light to pass through
refraction the bending or breaking of light as it moves from one material to another
concave lens a lens that is thicker at the edges than it is at the middle
convex lens a lens that is thicker at the center than it is at the edges
kinetic energy the energy of motion or moving
potential energy the energy an object has because of its condition or position; stored energy
motion the action of moving or changing places or positions
force a push or pull upon an object resulting from the object's interaction with another object
friction the force that happens when two things rub together
weight a measurement of how heavy something is; a measure of a pull of gravity on an object
mass the amount of matter or weight of an object
speed a measurement of distance over time; how fast something travels
gravity a force that pulls everything towards the center of the Earth
Newton's 1st Law - Law of Inertia An object moving in a straight line will continue moving in a straight line, unless acted on by an outside force. Also an object at rest will remain at rest, unless acted upon by an outside force.
Newton's 2nd Law Force will cause a change in the motion of an object. The change in motion depends on the amount of force and the mass of the object.
Newton's 3rd Law For each action, there is an equal and opposite reaction.
Created by: Anderson11
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