The ends of a bar magnet are called ..
a. ends
b. south
c. poles north

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Light waves can move through , but they travel fastest when they move through a(n) .