26.23. W http://www.ck12.org
26.23 W
watt (W)
SI unit for work, equal to 1 joule of work per second.
wave amplitude
Maximum distance the particles of a medium move from their resting positions when a wave passes through.
wave frequency
Number of waves that pass a fixed point in a given amount of time.
wave interference
Interaction of waves with other waves.
wavelength
Distance between two corresponding points of adjacent waves, such as the distance between two adjacent
crests of a transverse wave.
wave speed
How far a wave travels in a given amount of time; calculated as wavelength multiplied by wave frequency.
wedge
Simple machine that consists of two inclined planes.
weight
Measure of the force of gravity pulling on an object.
wheel and axle
Simple machine that consists of two connected rings or cylinders, one inside the other, which turn in the same
direction around a center point.
work
Use of force to move an object; calculated as force multiplied by distance.