Nature of Quantities | OCR A-Level Physics A (H556)
Nature of Quantities
- 25 questions
- 2 subtopics
- Module 2: Foundations of physics
- Paper 1, Paper 2 and Paper 3
The distinction that runs through the whole course: which quantities carry direction and which do not, and how vectors are added and resolved..
It covers scalars and vectors and adding and resolving vectors.
Sample questions from Nature of Quantities
Answer each one closed book first, then open the answer.
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Scalars and vectors
Is energy a scalar or vector quantity?
Show the answer
Energy is a scalar quantity. -
Scalars and vectors
Is acceleration a scalar or vector quantity?
Show the answer
Acceleration is a vector quantity. -
Adding and resolving vectors
How can a scale drawing be used to determine the resultant of two coplanar vectors?
Show the answer
Draw the vectors to scale head-to-tail, then measure the length and angle of the resultant vector from the diagram. -
Adding and resolving vectors
In the expression Fₓ = F cos θ, what does θ represent?
Show the answer
The angle between the vector F and the horizontal direction.
The 2 subtopics
One subtopic is one session. Work down the list.
| Subtopic | What it covers | Questions |
|---|---|---|
| Scalars and vectors | Recall questions on what separates the two, examples of each, and how a vector is written. | 13 |
| Adding and resolving vectors | Recall questions on the vector triangle, finding a resultant, and resolving into perpendicular components. | 12 |
How the guide is worked
Answering a question from memory stores it far better than reading the answer again. The guide runs that as a fixed procedure on one subtopic at a time, about twenty minutes a session.
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Step 1 · Closed book
Cover the answers. Work through one subtopic and write down what you can. Leave blanks where you have nothing.
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Step 2 · Open book
Go back to the top. Read each printed answer and write it out in full, including the ones you had right.
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Step 3 · Closed book again
Same questions, same order, from memory. The gap between pass one and pass three is the session result.
Read the full method, the return schedule and the research behind it.
Nearby topics
OCR A-Level Physics A Active Recall Guide
Every topic, not just this one. 1,862 questions with their answers.