Skip to main content

Back to the full dot-point answer

SingaporePhysicsQuick questions

Measurement

Quick questions on Graphical analysis and straight-line graphs: H2 Physics Measurement

4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is reading the gradient correctly?
Show answer
The gradient must be calculated from two well-separated points on the best-fit line, not from a single data point:
What is q1?
Show answer
The relationship Ek=12mv2E_k = \tfrac{1}{2}mv^2 is to be tested by varying vv. State what you would plot to obtain a straight line through the origin, and what the gradient represents. [2 marks]
What is q2?
Show answer
A set of resistance values follows R=R0(1+αθ)R = R_0(1 + \alpha\theta) with temperature θ\theta. State the axes for a straight-line plot and identify the gradient and intercept. [2 marks]
What is q3?
Show answer
Data are suspected to follow y=ax3y = ax^3. Describe a logarithmic plot to confirm this and find aa. [3 marks]

Have a question we have not covered?

This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.

All PhysicsQ&A pages