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