"Explain" questions — OCR A-Level Physics B: Advancing Physics (H557)
83 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 security door in a museum uses an electric motor to open and close automatically. The motor contains a coil of wire pl…
- A ship uses sonar to map the seabed. Pulses of ultrasound are emitted from beneath the ship, travel through seawater, an…
- A student sets up a circuit to investigate how the resistance of a light dependent resistor (LDR) changes. The circuit u…
- A student sets up two identical resistors, one connected in series with a power supply and one connected in parallel wit…
- A student sets up an electromagnet by wrapping a wire into a coil and connecting it to a battery. The student wants to m…
- Engineers use ultrasound to check for cracks inside large metal components, such as aircraft engine parts, without cutti…
- A kettle element is made from a long, thin wire. When the kettle is switched on, the current through the element causes …
- A radiographer is considering which type of radioactive source to use when treating a patient who has a tumour deep insi…