Physics A-Level
Cosine form
What Cosine form means in Physics A-Level, as defined for OCR.
Definition of Cosine form
Check what you remember
Read the wording for your board, then hide it and explain Cosine form in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The solution x = A cos(ωt), which starts at maximum displacement when t = 0.
Topics that use Cosine form
- Simple harmonic oscillations (OCR A-Level)
Related terms
- Amplitude
- Angular frequency
- Defining equation of simple harmonic motion
- Displacement
- Energy and motion at equilibrium and maximum displacement
- Gradient as a graphical derivative
- Period
- Period and frequency relationships
Using Cosine form in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge