Physics: Energy Resources And Energy Transfers: Units
Bayani Gaba-gaba
Energy is the currency of physics, and like any currency it needs a unit before the numbers mean anything. The energy section leans on eight of them, and they are not eight unrelated facts: each one is built from the others in a way that you can reconstruct rather than memorise.
This lesson sets out the kilogram, joule, metre, metre per second, metre per second squared, newton, second and watt. You will see how the joule grows out of the newton, how the watt grows out of the joule, and how tracking units through a calculation catches a wrong answer before the examiner does.
Manufura
- Use the following units: kilogram (kg), joule (J), metre (m), metre/second (m/s), metre/second2 (m/s2), newton (N), second (s) and watt (W)
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Physics: Energy Resources And Energy Transfers: Units. 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.
- The SI unit of energy is the: A) newton B) watt C) joule D) kilogram Answer: C
- One watt is equal to: A) 1 joule B) 1 joule per second C) 1 newton metre D) 1 newton per second Answer: B
- Which of these has no unit? A) Power B) Work done C) Efficiency D) Weight Answer: C
- A force of 20 N moves an object 4 m in the direction of the force. The work done is: A) 5 J B) 16 J C) 24 J D) 80 J Answer: D
- 3.0 kW expressed in watts is: A) 3 W B) 30 W C) 300 W D) 3000 W Answer: D
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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Kana son yin aikin tambayoyin gwaji kan Physics: Energy Resources And Energy Transfers: Units? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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