1) Sound and light are both forms of energy that travel in what? a) mountains b) waves c) trees 2) Which must have a medium to travel through? a) sound b) light 3) Which travels faster? a) sound b) light 4) What is pitch? a) how high or low a sound is b) different waves c) a type of flower 5) What is a high pitch sound? a) adult yelling b) baby screeching 6) What is different depending on the pitch? a) length of sound wave b) nothing c) light comes in your ear

Sound Waves- Readworks

由
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？