At night, a driver can see a dry road clearly in the car's headlights. When the road is wet, the driver sees bright glare from street lamps and can see less of the road surface.
The surface of a dry road is rough.
Describe how light from the headlights is reflected by the dry road.
When the road is wet, a layer of water fills the gaps in the road surface and makes it smooth.
Explain why the driver sees bright glare and less of the road surface.
In sunlight, the black road surface becomes hotter than the white lines painted on it.
Explain why.
51 exam-style questions on OCR GCSE Physics 5.3 Wave interactions, covering 5.3.1 Wavelength and how substances affect waves, 5.3.2 Wave velocity in different substances, 5.3.3 Convex and concave lenses, 5.3.4 Ray diagrams for reflection and refraction, and 5.3.5 Colour, absorption and reflection. Each one has a worked solution and a mark scheme showing where the marks go.