1. A wave had a wavelength of 5m and speed of 15m/s, what is the frequency 2. Red light has a longer wavelength than violet light, which one has the greater frequency?(hint they both travel at the same speed)

3. If speed of a longitudinal sound wave is 340m/s and the frequency is 1000 Hz, what is the wavelength?

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Which fact represents evidence for the big bang theory?