P4 Waves and radioactivity

Practice questions on Waves and radioactivity

• A security system at an art gallery uses infrared sensors to detect intruders in the dark.… (4 marks, Explain)
• Explain what happens to a wave when it passes from deep water into shallow water, in terms… (4 marks, Explain)
• A hospital uses different types of electromagnetic radiation for different medical purpose… (4 marks, Describe)
• Describe the properties of beta radiation that make it suitable for use in thickness monit… (4 marks, Describe)
• A geologist discovers a rock sample that is radioactive. Tests show the sample emits all t… (4 marks, Explain)
• Explain why workers in a nuclear power station are given film badges to wear, and describe… (4 marks, Explain)
• Explain why gamma radiation is more hazardous to living cells than alpha radiation when a … (4 marks, Explain)
• Explain why alpha radiation is considered more hazardous than gamma radiation when a radio… (4 marks, Explain)
• Explain why smoke detectors that use americium-241, an alpha emitter, are considered safe … (4 marks, Explain)
• A hospital uses a radioactive tracer to investigate the function of a patient's thyroid gl… (4 marks, Explain)
• A worker in a nuclear power plant is exposed to radiation from radioactive materials. Desc… (4 marks, Describe)
• A technician is storing three different radioactive sources in a laboratory. One source em… (4 marks, Describe)
• Explain why alpha radiation is more ionising than gamma radiation. (4 marks, Explain)
• A photographer notices that some materials appear a different colour when viewed under ult… (4 marks, Explain)
• Explain why radio waves are used to transmit signals over long distances through the atmos… (4 marks, Explain)
• Describe what happens to a light wave when it travels from air into glass, in terms of its… (4 marks, Describe)
• A harbour wall has a narrow opening that allows ocean waves to enter a sheltered bay. A bo… (4 marks, Explain)
• A teacher demonstrates sound waves passing through a narrow gap in a wall. The teacher not… (4 marks, Explain)
• A student is investigating waves at a boundary between two different materials. The studen… (4 marks, Explain)