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