Exam (elaborations)
IB Physics HL/SL Definitions by topic
- Course
- Institution
IB Physics HL/SL definitions by topic provided and compiled from past exams
[Show more]
Seller
Follow
gracelin
Content preview
DefinitionsWords Markscheme definition
Specific heat capacity The energy required to change the temperature of a substance by 1 K of 1 kg
Internal energy Sum of the total kinetic and potential energies of the atoms / particles /
molecules of a substance
Specific latent heat of The energy required to change the phase of 1 kg of a substance from a solid to a
fusion liquid without any temperature change
Simple harmonic motion The (restoring) force / acceleration is proportional to the displacement from
equilibrium. The force / acceleration is directed toward the equilibrium; the
force / acceleration is in the opposite direction to the displacement
Longitudinal wave The direction of oscillations / vibrations/ movement of particles; for a
longitudinal wave is parallel to the direction of energy propagation of the ave
Explain why intensity Two waves superpose; they arrive in phase / there is a path length difference of
maxima are observed an integer of a wavelength
Drift velocity in Electrons have high random speeds when accelerated by an electric field in a
conduction conductor. They collide with the ions and obtain a net speed in the direction
opposite to the field direction
Coulomb’s law The force between two point charges is inversely proportional to the square of
their separation and directly proportional to the product of their magnitudes;
OR equation with the variables defined
Electromotive force Work per unit charge supplied (by a cell) driving the current completely around
a circuit; potential difference across a cell when no current flows
Discuss why there is a Electrons are free moving in the copper wires so they are able to carry current;
significant electric charge carriers are not free moving in the insulator; when an electric field is
current only in the applied, it will accelerate the free moving electrons
copper wires
Explain in terms of There will be a greater vibration of the lattice ions; drift velocity of the
electrons what happens electrons decreases; voltage is constant so resistance increases
to the resistance of the
cable as the temperature
of the cable increases
Explain why centripetal Circular motion involves a changing velocity that is tangential and
force is required to keep perperpendicular to the centripetal force. Without centripetal force, the planet
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 gracelin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now