Which of the following electromagnetic waves are listed in the correct order from longest wavelength to shortest wavelength?
a. infrared, ultraviolet, visible
b. visible, infrared, ultraviolet
c. ultraviolet, visible, infrared
d. infrared, visible, ultraviolet

What is the measurement of how fast an object moves relative to a reference point?

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

Which of the following examples illustrates static friction? a box sits stationary on a ramp. a ball rolling on the lawn eventually comes to rest. a car rounds a curve on a road. a fish swims upstream.