"Explain" questions — WJEC A-Level Physics (Wales)
132 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 student places a hot drink in a polystyrene cup and the same volume of equally hot drink in a thin metal cup. After te…
- A sound wave travels through air from a loudspeaker to a listener. Explain what is meant by the amplitude, frequency, an…
- A student moves a bar magnet into a coil of wire connected to a sensitive ammeter. The ammeter needle deflects, showing …
- A cyclist rides along a flat road at a constant speed. The cyclist's legs apply a force to the pedals, but the bicycle d…
- Explain why nuclear power stations are considered by some people to be a good choice for generating electricity, and why…
- A student connects a length of nichrome wire to a battery. The student then replaces the nichrome wire with a piece of r…
- A car travels at a constant speed around a circular roundabout. Explain why a net force must act on the car even though …
- A metal tin contains air at room temperature. The tin is placed in a freezer and left until the air inside cools to a mu…