A) light B) motion C) energy D) liquid
A) thinking about objects B) changes in the state of matter C) vibrating objects D) energy changing form
A) empty space B) water C) matter D) solid objects
A) gels B) solids C) gases D) liquids
A) a block of iron B) empty space C) a pool of water D) a mixture of gases
A) empty space B) straight lines C) circular motions D) waves
A) hear B) speak C) see D) feel
A) true B) false
A) a form of energy that travels in waves and can move in empty space B) the amount of matter in an object C) a form of energy produced by vibrating objects D) the substance that does not allow electricity to travel through it
A) move back and forth rapidly B) a force that works against motion C) a form of energy produced by vibrating objects D) the measure of the amount of gravity acting on an object's mass |