The chart shows the speed at which light travels through different media.

In which medium would light have the longest wavelength?

water

air

glass

diamond

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

What energy transformations occur each time the skateboarder rolls up the ramp?

Element with 5protons and 3neutrons