[The note has been updated for syllabus].
All the questions in the past exam papers were analysed and there were a large amount of repetitive questions; the most noticeable ones being the definitions. The other parts of the notes were a collection of questions and answers from the mark scheme t...
Is there anything I can do to improve the notes? I'll try my best to add them!
By: eimanhamdoun • 5 year ago
By: pete_lohprasert • 5 year ago
I am sorry to see that you didn't like my notes, can you perhaps tell me what you think could be improved so that I can edit it over the summer holiday for the future students who take the exams. Thanks!
Seller
Follow
pete_lohprasert
Reviews received
Content preview
CIE AS Physics Paper 2 Notes
Updated on 15/2/2019
Patapee Lohprasert (pete.lohh@gmail.com)
Mechanical Engineering Department, Imperial College London
, Contents
1 Physical quantities and units ................................................................................................................. 1
5 Forces, density and pressure ................................................................................................................. 2
6 Work, Energy and Power ........................................................................................................................ 3
9 Deformation of Solid................................................................................................................................ 3
17 Electric Fields ............................................................................................................................................... 5
19 Current of electricity ................................................................................................................................. 5
26 Particle and nuclear physics .................................................................................................................. 7
,Key Points and Definitions
[AN] Author’s Notes
** Key Points that are not “definitions” eg. ‘define...’ ‘what is meant by…’
(**The topic numbers below are according to the 2019-2021 Syllabus and the definition and key
points are all from the mark scheme up to June 2018)
https://www.cambridgeinternational.org/Images/329533-2019-2021-syllabus.pdf
1 Physical quantities and units
Scalar Quantity: has magnitude only
Vector Quantity: has magnitude and direction
2 Measurement techniques
Systematic errors: constant error (in all readings) // cannot be eliminated by averaging
// error in measuring instrument
Random errors: readings scattered (equally) about the true value // error due to
observer // can be eliminated by averaging
Precision: smallest scale division of instrument
Accuracy: how close are the readings to the true value
3 Kinematics
Velocity: rate of change in displacement
**Velocity is the gradient of the displacement time graph
Acceleration: rate of change in velocity
**Acceleration is the gradient of the velocity time graph
Difference between distance and displacement: distance is scalar, and displacement is
vector. Displacement is the shortest distance between two points, distance is the sum of
the lengths moved.
**Displacement is the area under graph of velocity time graph
[AN] You should also know the all the SUVAT equations for this part (Remember all of them,
don’t waste time to derive them).
, 4 Dynamics
Newton’s first law: a body remains at rest or at constant velocity unless acted on by a
resultant external force
Newton’s second law: Force =rate of change in momentum (Also the definition of force)
𝑚𝑣−𝑚𝑢 𝑣−𝑢
**𝐹 = = 𝑚( ) = 𝑚𝑎 !! (F = ma)
𝑡 𝑡
Newton’s third law: for every action, there is an equal and opposite reaction
Weight: weight is the force due to the gravitational field // force due to gravity or
gravitational force
**𝑊 = 𝑚𝑔
Principle of conservation of momentum: Total momentum before the collision is equal
to the total momentum after the collision when there is no resultant external force acting
/ in an isolated system
**Although momentum is always conserved, Kinetic energy my change to other form
of energy, hence energy lost from the system
Elastic collision: Total kinetic energy before collision is equal to the total kinetic energy
after the collision // relative speed of approach = relative speed of separation
5 Forces, density and pressure
Centre of gravity: the point where all the weight of the body is considered to act
Center of mass: the point on an object where all its mass is considered to act
Principle of moments: the sum of the clockwise moments about a point is equal to the
sum of anticlockwise moments about the same point
Moment of a force: product of force and the perpendicular distance from a pivot
Torque of a couple: one of the forces times by the perpendicular distance between the
forces.
Equilibrium: no resultant force and moment (torque)
Density: mass / volume
Mass: Quantity of matter in a body // property in a body resisting changes in motion
Pressure: Force per unit area (normal to the force)
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 pete_lohprasert. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
