How many times does the kinetic energy of a car increase when traveling 60 mph as opposed to traveling 30 mph?
ke. increases
times.

What kind of simple machine is a catapult?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.