Moodle Activity Examples

The angle between the reflected wave and the normal [10].

The angle between the normal and the path of a wave through the second
medium [10].

The unit used to define the wavelength of light waves [10].

The property of a radiator that allows it to emit strong radiation in one direction [10].

(1) A positive electrode of an electrochemical device (such as a primary or secondary electric cell) toward which the negative ions are drawn [1] [6) [7]. (2) The semiconductor-diode terminal that is positive with respect to the other terminal when the diode is biased in the forward direction [13].

A conductor or set of conductors used to radiate RF energy into space or to collect RF energy from space or to do both [10].

Width of a radar beam measured between half-power points [18].

A device used for impedance matching between an antenna and a transmitter or receiver [17].

Routes RF energy from the transmitter, radiates the energy into space, receives
echoes, and routes the echoes to the receiver [18].

An electronic circuit used to minimize the effects of enemy countermeasures, thereby permitting radar echoes to be visible on the indicator [18].