"Explain" questions — OCR A-Level Physics A (H556)
86 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 lorry travelling at high speed along a motorway collides with a stationary car. After the collision, both vehicles mov…
- A fishing vessel uses sonar to locate a shoal of fish beneath it. Ultrasound pulses are emitted downward from the hull o…
- A engineer is designing a circuit for a new electric vehicle charging station. One charging port uses a motor with a hig…
- A street lighting system uses light dependent resistors (LDRs) to automatically switch lights on at night and off during…
- A hospital uses ultrasound waves to produce images of structures inside a patient's body. Explain how ultrasound waves a…
- A hospital uses a device that converts sound into electrical signals to monitor a patient's heartbeat sounds. Inside the…
- A student is investigating how a spring stretches when different forces are applied to it. The student notices that at f…
- A thermistor and a fixed resistor are connected in series with a battery. Explain what happens to the total resistance o…