Weight
Power
Pressure
Frequency
Answer is Right!
Answer is Wrong!
The correct answer is D. Frequency.
Hertz (Hz) is the SI unit of frequency. It is named after Heinrich Hertz, a German physicist who discovered electromagnetic waves in the 19th century. Frequency is the number of cycles of a wave that occur in a given amount of time. It is measured in cycles per second (cps), which is also called hertz (Hz).
Weight is a measure of the force of gravity on an object. It is measured in newtons (N).
Power is the rate at which work is done. It is measured in watts (W).
Pressure is the force exerted per unit area. It is measured in pascals (Pa).