Interview
IB Physics SL: Formula Booklet understanding
- Course
- Institution
A document that decomposes each formula to explain what their use is as well as what each variable corresponds to.
[Show more]
Seller
Follow
juliettebacuvier
Reviews received
Content preview
Formula booklet understandingEquation Unit Explanation
Uncertainties
If 𝑦 = 𝑎 ± 𝑏 Arbitrary → absolute uncertainty
Then: ∆𝑦 = ∆𝑎 + ∆𝑏
If 𝑦 =
𝑎𝑏 Arbitrary → fractional uncertainty
𝑐
∆𝑦 ∆𝑎 ∆𝑏 ∆𝑐
Then: 𝑦
= 𝑎
+ 𝑏
+ 𝑐
If 𝑦 = 𝑎^𝑛 Arbitrary → fractional uncertainty of which is equal
∆𝑦
Then 𝑦 = ||𝑛
∆𝑎 | to the fractional uncertainty of a^n
𝑎 | n = exponent of a (constant)
y:
a : measured value
Vectors & Scalars
𝐴 = 𝐴𝑠𝑖𝑛θ arbitrary Think of trigonometry → horizontal vector
ℎ
𝐴 = 𝐴𝑠𝑖𝑛θ arbitrary → vertical vector
𝑣
Motion
𝑣 = 𝑢 + 𝑎𝑡 metres/secon velocity
𝑣² = 𝑢² + 2𝑎𝑠 d
𝑠 = 𝑢𝑡 +
1
𝑎𝑡² metres displacement
2
(𝑣+𝑢)𝑡
𝑠= 2
Forces
𝐹 = 𝑚𝑎 Newtons Force exerted on object which is equal to
the mass times the acceleration of an
object
𝐹 ≤ µ 𝑠𝑅 Newtons Friction is equal or inferior to coefficient of
𝑓
friction times normal force for static object
𝐹 = µ 𝑅 Newtons Friction is equal to coefficient of friction
𝑓 𝑑
times normal force for dynamic object
Work, energy & power
𝑊 = 𝐹𝑠 𝐶𝑜𝑠θ Joules Work equal to the force times the
displacement times the cosine of the angle
of displacement
, 𝐸 =
1
𝑚𝑣² Joules Kinetic energy equal to half the mass of the
𝑘 2
object times the square of its velocity
𝐸 =
1
𝑘∆𝑥² Joules Potential energy equal to half the spring
𝑝 2
constant times the difference of x square
∆𝐸 = 𝑚𝑔∆ℎ Joules Difference in potential energy is equal to
𝑝
the mass times gravity times the difference
in height
𝑝𝑜𝑤𝑒𝑟 = 𝐹𝑣 Watt or Power is equal to the force times velocity
Kg⋅m2⋅s−3
𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑐𝑦 =
𝑢𝑠𝑒𝑓𝑢𝑙 𝑜𝑢𝑡𝑝𝑢𝑡 %
𝑡𝑜𝑡𝑎𝑙 𝑖𝑛𝑝𝑢𝑡
Momentum & Impulse
𝑝 = 𝑚𝑣 kg•m/s or N/s Momentum which is equal to mass times
velocity
𝐹=
∆𝑝 Newtons Force which is equal to the ratio of
∆𝑡
difference of momentum over the
difference of time
𝐸 =
𝑝² Joules Kinetic energy which is equal to the ratio of
𝑘 2𝑚
the square of momentum over twice the
mass
𝑖𝑚𝑝𝑢𝑙𝑠𝑒 = 𝐹∆𝑡 = ∆𝑝 Newton / Impulse which is equal to Force times the
second difference in time and is also equal to the
difference in momentum
Oscillations
𝑇=
1 seconds The period is equal to 1 over the frequency
𝑓
Travelling waves
𝑐 = 𝑓λ m/s The speed of a wave is equal to its
frequency times its wavelength
Wave characteristics
𝐼∝𝐴² W/m² Intensity is proportional to the square of
the area
𝐼∝𝑥⁻² W/m² Intensity is proportional to the inverse
square of displacment
𝐼 = 𝐼 0𝑐𝑜𝑠(θ)² W/m² Intensity of polarizer is equal to the initial
intensity times the square of cos of the
angle
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller juliettebacuvier. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.51. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75057 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now