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