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