Lecture notes
physics edexcel igcse (9-1) full book notes
- Module
- Institution
- Book
This document contains all the notes from the physics Edexcel IGCSE student book (9-1)
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
physics edexcel igcse (9-1) full book notes
-
physics edexcel igcse (9-1) full book notes
-
physics edexcel igcse (9-1) full book notes
Seller
Follow
jadoncherian146417e
Content preview
Forces:Unbalanced and Balanced Forces:
When same amount of forces act on an object
from different sides, there is an overall balanced
force in the system. Or in other words the forces
are of the same size but act in opposite
directions. When the forces are balanced the
object does not change the direction it is
moving, the object is stationary. When the force
from either side decreases or increases there is
an unbalanced force, and the object starts
moving in the direction of the greater force.
Terminal Velocity of a falling
object:
● When an object falls, there’s initially no
no air resistance or drag its just the
weight of the object falling. The
resultant force of the object is
accelerating downwards.
● As it falls, it accelerates increasing
the speed, now air resistance starts acting on the object
● Eventually there are equal forces acting from opposite directions, the weight, and the drag
force balances out and there is no resultant force.
● When there is no acceleration, and the velocity is constant terminal velocity has reached.
Crumple Zones in cars for safety:
A modern car has crumple zones in the front and the back
which deform/collapse during a collision and increase the
time during which the car is decelerating. In other words,
it absorbs the impact slowly over time. This only work if
the passenger is wearing their seatbelts so the reduced
deceleration applies to their body.
, The turning effect of forces:
● As perpendicular distance from the pivot decreases, we will need more force for a turning
effect on an object. The longer the distance the less force needed.
Electricity:
Safety devices:
Fuses
A fuse is in a shape of a cylinder or cartridge and is placed inside a 3-pin plug. It contains a thin piece
of metal which has a low melting point, this metal piece will melt if there are large amounts of
current, this makes the circuit incomplete. This is a safety device that prevents electrical fires and
shocks to the users. Once the fault causing the increase in current is sorted the fuse is replaced.
● The common fuse sizes used in homes are 3A, 5A and 13A
● They are easy to use and cheap
Earthing:
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 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 jadoncherian146417e. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.36. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now