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Electricity Basics = , = ! = , !! = = = ∙ Transformers ! ! = ! ! ! ! = ! ! Forces and Motion SUVAT = + ! = ! + 2 = + 2 = + 1 2 ! Newton’s Second Law = Momentum ( !! ) = ∙ ℎ !! = − = = Weight = Work Done = ∙ Power = = = !! GPE ℎ KE 1 2 ! Percentage efficiency ∙ 100% Thermal Physics Density = ! Waves Wave Nature = = 1 = ℎ, where h is plank’s constant (6.63 ∙ 10 !!" )

Forces and SUVAT MotionElectricity Basics !=!",!=!!! Transformers ! Forces and Motion + SUVAT !=!+!"!!=! 2! 2! !=!"+ 1 2!!! Newton’s Second Law !=!" Momentum !"#$%&’# (!"!ℎ

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Page 1: Forces and SUVAT MotionElectricity Basics !=!",!=!!! Transformers ! Forces and Motion + SUVAT !=!+!"!!=! 2! 2! !=!"+ 1 2!!! Newton’s Second Law !=!" Momentum !"#$%&’# (!"!ℎ

Electricity Basics 𝑉 = 𝐼𝑅,𝑉 = 𝐼!𝑅𝑃 = 𝑉𝐼, 𝐽𝑠!!

𝐸 = 𝑃𝑡 = 𝑉𝐼𝑡 = 𝑉 ∙ 𝐶𝑜𝑢𝑙𝑜𝑚𝑏𝑠 𝑡𝑟𝑎𝑛𝑠𝑓𝑒𝑟𝑒𝑑Transformers 𝑉!

𝑉!=𝑁!𝑁!

𝑉!𝐼! = 𝑉!𝐼!ForcesandMotion

SUVAT 𝑣 = 𝑢 + 𝑎𝑡𝑣! = 𝑢! + 2𝑎𝑠

𝑠 =𝑢 + 𝑣2 𝑡

𝑠 = 𝑢𝑡 +12𝑎𝑡

!Newton’sSecondLaw 𝑓 = 𝑚𝑎

Momentum 𝑀𝑜𝑚𝑒𝑛𝑡𝑢𝑚 (𝑘𝑔 𝑚𝑠!!) = 𝑚𝑎𝑠𝑠 ∙ 𝑣𝑒𝑙𝑜𝑐𝑖𝑡𝑦𝑐ℎ𝑎𝑛𝑔𝑒 𝑠!! =

𝑚𝑣 −𝑚𝑢𝑡 = 𝑚 𝑎 = 𝑓𝑜𝑟𝑐𝑒

Weight 𝑤 = 𝑚𝑔WorkDone 𝑊𝐷 = 𝑓 ∙ 𝑑Power 𝑃 =

𝑊𝐷𝑡𝑖𝑚𝑒 =𝑊𝑎𝑡𝑡𝑠 = 𝐽𝑠!!

GPE 𝑚𝑔ℎKE 1

2𝑚𝑣!

Percentageefficiency 𝑢𝑠𝑒𝑓𝑢𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑖𝑛𝑝𝑢𝑡 ∙ 100%

ThermalPhysics

Density 𝑀𝑎𝑠𝑠𝑣𝑜𝑙𝑢𝑚𝑒 =

𝑘𝑔𝑚!

Waves WaveNature 𝑣 = 𝑓𝜆

𝐹𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦 𝐻𝑧 =1

𝑡𝑖𝑚𝑒 𝑓𝑜𝑟 𝑜𝑛𝑒 𝑜𝑠𝑐𝑖𝑙𝑙𝑎𝑡𝑖𝑜𝑛

𝐸 = ℎ𝑓,wherehisplank’sconstant(6.63 ∙10!!")

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