3 Waves and quantum behaviour

Practice questions on Waves and quantum behaviour

• A student is investigating sound waves travelling through air. Explain what is meant by th… (5 marks, Explain)
• A student plucks a string on a guitar, producing a wave that travels along the string. Des… (5 marks, Describe)
• A lifeguard at a swimming pool notices that water waves are spreading out from a child spl… (5 marks, Describe)
• A student investigates the emission of electrons from a zinc plate using ultraviolet light… (5 marks, Explain)
• A metal surface is illuminated with visible light of high intensity, but no electrons are … (5 marks, Explain)
• The photoelectric effect cannot be explained using a wave model of light. Explain how the … (5 marks, Explain)
• A scientist investigates the photoelectric effect using a clean caesium metal surface. Whe… (5 marks, Describe and explain)
• Explain why increasing the frequency of light incident on a metal surface causes electrons… (5 marks, Explain)
• A teacher demonstrates how waves behave by sending pulses along a long slinky spring stret… (5 marks, Describe)
• A radio station broadcasts signals using electromagnetic waves. The waves travel through t… (5 marks, Describe)