# Normal Modes

See simulatsioon pole veel sellesse keelde tõlgitud. Ingliskeelne versioon on saadaval allpool.

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Vajuta, et mängida
Kasuta seda HTML koodi, et näidata ekraanipilti koos sõnadega ,,Vajuta, et mängida". Oscillator Normal Modes Polarization PhETi toetavad ja õpetajad nagu Teiegi.

### Sisu

• Oscillator
• Normal Modes
• Polarization
• Mass Spring System
• Frequency
• Amplitude
• Phase

### Description

Play with a 1D or 2D system of coupled mass-spring oscillators. Vary the number of masses, set the initial conditions, and watch the system evolve. See the spectrum of normal modes for arbitrary motion. See longitudinal or transverse modes in the 1D system.

### Näidis-õpieesmärgid

• Explain what a normal mode is.
• Explain what are the frequency, the amplitude, and the phase of a normal mode.
• Explain why different normal modes have different frequencies and why higher-numbered modes have higher frequencies.
• Identify how many normal modes a given system has and be able to sketch the individual modes qualitatively, for both 1D and 2D systems.
• Explain the distinction between transverse and longitudinal normal modes in a 1D system.
• Explain how adjusting the phase of a normal mode affects the motion of the system.
• Explain qualitatively how any arbitrary state of the system can be written as a sum of normal modes; that is, explain the superposition principle.
• Explain which properties of the system are set by the initial conditions, which properties are time-independent, and which properties are time-dependent.
• Explain why striking a metal plate in one spot raises the temperature of the plate.
Version 1.01

### Teacher Tips

 Õpetajate juhend (pdf) sisaldab PhETi poolt loodud nõuandeid. ( PDF ).

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Belarusian All беларускі Нармальныя рэжымы
bosnia All Bosanski Normalni modovi
galeegi All Gallegan Modos de vibración
heebrea All עברית מצבים נורמלים
hiina (lihtsustatud) All 中文 (中国) 标准振荡
hiina (trad.) All 中文 (台灣) Normal Modes 正規振態
hispaania All español Frecuencias resonantes.
hispaania (Peruu) All español (Perú) Frecuencias Resonantes
indoneesia All Bahasa Indonesia Pola - pola Normal
itaalia All italiano Modi normali di vibrazione (Risonanza)
jaapani All 日本語 基準振動（モード）
kasahhi All Kazakh қалыпты тізімдер
korea All 한국어 정규 모드
kreeka All Ελληνικά Κανονικές καταστάσεις
makedoonia All македонски Нормални модови
mongoli All Монгол (Монгол) Хэвийн Горим
poola All polski Mody Normalne
portugali (Brasiilia) All português (Brasil) Modos Normais
prantsuse All français Modes vibratoires à plusieurs corps
pärsia All فارسی مد طبيعي
saksa All Deutsch Normalschwingungen 1D & 2D
serbia All Српски Нормални модови
slovaki All Slovenčina Normálne vibračné módy
Spanish (Mexico) All español (México) Frecuencias resonantes.
taani All Dansk Normalindstillinger
tai All ไทย โหมดปกติ
türkmeeni All Turkmen Yrgyldamanyň normal diapazonlary
ungari All magyar Normál módusok
vietnami All Tiếng Việt Kiểu dao động chuẩn tắc
Windows Macintosh Linux
Microsoft Windows
XP/Vista/7/8.1/10
Macromedia Flash 9 or later
OS X 10.9.5 or later
Macromedia Flash 9 or later
Macromedia Flash 9 or later