§7.4 波的产生

Nov 06, 2019

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§7.4 波的产生. 1 ．机械波 ( Mechanical wave ) ：机械振动在介质中传播过程叫机械波。 1 2. 举例：水波；声波. （ 1 ）机械波存在的条件：. a. 波源；. b. 介质 ( medium ) ：可以传播振动的物质。. （ 2 ）振动与机械波的区别和联系：. a. 振动是形成波的原因；. b. 波是传递振动、振动能量的形式。. 有机械振动不一定有机械波；. （真空中声音）. 有机械波一定有机械振动。. 2 ．波的种类：.

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§7.4 波的产生

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§7.4 波的产生 1．机械波(Mechanical wave)：机械振动在介质中传播过程叫机械波。12 举例：水波；声波
（1）机械波存在的条件： a.波源； b.介质(medium)：可以传播振动的物质。（2）振动与机械波的区别和联系： a.振动是形成波的原因； b.波是传递振动、振动能量的形式。有机械振动不一定有机械波；（真空中声音）有机械波一定有机械振动。
2．波的种类： S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z
S 1 2 3 4 5 6 7 8 9 A B C D F G H I J K L M O P Q R S T U V W X Y Z