PHYSICS 11 Formulae Sheet

Motion

𝑣 =Δ𝑑

Δ𝑡 𝑎 =

Δ𝑣

Δ𝑡

𝑣 = 𝑣0 + 𝑎𝑡 𝑣 =𝑣 + 𝑣0

2

𝑑 = 𝑣0𝑡 +1

2𝑎𝑡2 𝑣2 = 𝑣0

2 + 2𝑎𝑑

Forces 𝐹𝑔 = 𝑚𝑔 𝐹𝑛𝑒𝑡 = 𝑚𝑎

𝐹𝑓𝑟 = 𝜇𝐹𝑁 𝐹𝑠 = 𝑘∆𝑥

Energy: Mechanical and Thermal 𝑊 = 𝐹𝑑 𝑊 = ∆𝐸 𝑊𝑛𝑒𝑡 = ∆𝐸

𝑃𝐸𝒈 = 𝑚𝑔ℎ 𝐾𝐸 =𝟏

𝟐𝑚𝑣2 ∆𝐾𝐸 = −∆𝑃𝐸

𝑃 =𝑊

∆𝑡=

∆𝐸

∆𝑡= 𝐹𝑣 efficiency =

𝑊 𝑜𝑢𝑡

𝑊 𝑖𝑛 =

𝑃 𝑜𝑢𝑡

𝑃 𝑖𝑛

𝑄 = 𝑚𝑐∆𝑇 Electric Circuits

𝐼 =𝑄

∆𝑡 𝑉 = 𝐼𝑅

𝑃 = 𝐼𝑉 ∑ 𝐼 𝑖𝑛 = ∑ 𝐼 𝑜𝑢𝑡 ∑ 𝑉𝑔𝑎𝑖𝑛𝑠 = ∑ 𝑉𝑑𝑟𝑜𝑝𝑠

𝑅𝑆 = 𝑅1 + 𝑅2 + 𝑅3 … 𝑅𝑛 1

𝑅𝑃=

1

𝑅1+

1

𝑅2+

1

𝑅3+ ⋯

1

𝑅𝑛

Waves

𝑇 =1

𝑓 𝑣 = 𝑓𝜆 𝑓𝑏𝑒𝑎𝑡 = |𝑓1 − 𝑓2|

Draft for Review June 2017