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