General Properties Of Waves
Bayani Gaba-gaba
Waves carry energy across a room, an ocean or the empty space between stars, yet they leave the matter they pass through more or less where it was. Ripples on a pond, a sound across a hall and light from the Sun are all waves obeying the same handful of rules.
In this lesson you will learn the vocabulary of waves (wavefront, wavelength, frequency, crest, trough, amplitude and wave speed), use the wave equation \(v=f\lambda\) to link them, and see what makes a wave transverse. These ideas underpin everything that follows about light, sound and the electromagnetic spectrum.
Manufura
- [Core] Know that waves transfer energy without transferring matter
- [Core] Describe what is meant by wave motion as illustrated by vibration (oscillation) in ropes and springs and by experiments using water waves
- [Core] Describe the features of a wave in terms of wavelength, frequency, crest (peak), trough, amplitude and wave speed
- [Core] Describe how waves can undergo: (a) reflection at a plane surface (b) refraction due to a change of speed
- [Core] Recall and use the equation for wave speed v = f λ
- [Supplement] Know that for a transverse wave, the direction of vibration is at right angles to the direction of propagation and understand that electromagnetic radiation, water waves and seismic S-waves (secondary) are transverse
- [Supplement] Know that for a longitudinal wave, the direction of vibration is parallel to the direction of propagation and understand that sound waves and seismic P-waves (primary) are longitudinal
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan General Properties Of Waves. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- A wave has frequency 20 Hz and wavelength 0.5 m. Its speed is: A. 0.025 m/s B. 10 m/s C. 40 m/s D. 20.5 m/s Answer: B
- The amplitude of a wave is the: A. distance crest to trough B. maximum displacement from rest C. distance crest to crest D. number of crests per second Answer: B
- Which quantity is measured in hertz? A. wavelength B. amplitude C. frequency D. wave speed Answer: C
- In a transverse wave the vibration is: A. along the direction of travel B. at right angles to the direction of travel C. in a circle D. zero Answer: B
- A wave of speed 12 m/s has frequency 3 Hz. Its wavelength is: A. 0.25 m B. 4 m C. 9 m D. 36 m Answer: B
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
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