Interview
Physics Grade 12 Complete Notes
- Course
- Institution
- Book
If you need any help feel free to message me!
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Nelson Physics 12 - Solutions Manual
-
SPH4U unit 5 bundle
-
SPH4U unit 4 bundle
Seller
Follow
lucymao
Content preview
Work Energy TheoremEnergy is a scalar valve
↳
gain 1 loss
work: Transfer of
energy
"
Energy Value
"
: steerable of work in a system
Analogy
-
money as
energy
:
System
-
= bank account
work = transfers in the account
-
↳e debit I withdraw
-
g -
vs .
Deposit
cross $) (gain $)
final balance
'
- .
Energy = in account
Mathematical definition Of work
'
. W = EX SI
work -
in Joules
E -
force causing displacement IN)
Dd -
displacement of Object Lm)
work is dot product Of E 3
.
Dot
↳ Scalar product of 2 Vectors
↳ direction not important
↳ cross product : product of 2 Vectors that produce a third vector
↳
product of magnitude give magnitude of vector
↳ another rule gives directionality
Unit J= N
analysis
: -
m
J=
kgm
-
SZ
, Graph: work is calculated as area of F vs Sd graph
if Eqn = W= E. sat
↳ The force is
}
F <
constant
↳
highly unrealistic
↳ work
derivative
actually integral 1 Anti
Of a E vs Sot
•
Implication of eqn
Ad is evidence that W was
successfully transferred to
the system b/c it
give pic of change that can be created by an
application of force which can result in the transfer of
energy
i. A force does transfer
acting on a system not
energy unless it
successfully causes displacement
push
-
against Wall : using energy → there is force
↳ there is 0 work → was an attempt
↳ O → transfer
Force =
to attempt to
energy
Note: newtons law still applies
↳ F
causing 1 affecting
Sot must be in same axis
Derivation of Eg
if W= F bot-
and W= Ez -
E,
W -
-
DE
L h3
← he Then Ez E ,
-
= E. sat
a hi
- Where the minimum amnt Of force
to lift I
required move an object is
Fg
↳ just a little > to
Fg accelerate
↳ F-
mg -7 Ez -
E, =
mg .
Dot then back to
Fg to keep constant
motion
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 lucymao. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
50843 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now