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