Energy
Light and sound are examples of what kind of energy?
Kinetic Energy
A wheel and _____ is a machine that can help overcome friction.
axle
The highest point of a wave
Crest
The loudness or softness of a sound
Volume
These forces do work.
Unbalanced
Coal and other fuel sources are examples of what kind of energy?
Potential Energy
Part of the lever that holds and balances weight.
Fulcrum
Light that bounces, or is thrown back is _____ light.
Reflected
Measured from one crest of a wave to another.
Wavelength
The particles that make up a molecule
Atoms
To change energy from one kind of energy to another
Convert
A device that makes work easier
Machine
Material that can scatter light
Translucent
The highness or lowness of sound
Pitch
Base of a building
Foundation
An object at rest will ________ unless acted upon by an unbalanced force.
stay at rest
A machine designed to overcome weight and make lifting easier.
Pulley
Material which transmits light
Transparent
Sounds is a form of energy that is released when an object ________.
Vibrates
Material that cannot easily transfer energy
Insulator
Material which can easily transfer energy
Conductor
What kind of simple machine is a ramp?
Inclined plane
Material that blocks light
Opaque
Light and sound are examples of _______ energy.
Kinetic
To give off light
Luminous