"Explain" questions — AQA A-Level Physics (7408)
148 questions · physics · View as Markdown
How to answer
WHAT + WHY. Every point paired with a because. Structure: X happens because Y. This causes Z because … Assessment Objective: AO2. Every "explain" answer on this spec is marked against exactly this pattern.
Sample questions
- A scientist is investigating the emission of light from excited hydrogen gas. The gas emits light only at specific frequ…
- Explain why ultrasound can be used to distinguish between two different soft tissues that are next to each other inside …
- A student wants to estimate the kinetic energy of a cyclist travelling along a flat road. Explain how the student could …
- Explain what happens to the molecules and the internal energy of a fixed mass of gas when it is compressed at constant t…
- A student builds a series circuit containing a battery, a diode and a fixed resistor. The student then reverses the conn…
- A student is investigating the properties of a superconducting material. The student records the following measurements:…
- A student measures the voltage across a battery using a voltmeter. He takes five readings: 9.1 V, 9.0 V, 8.6 V, 9.1 V, 9…
- A student measures the width of a human hair as 0.00008 m. Explain how the student could express this measurement using …