6 Nuclear physics and the universe

Practice questions on Nuclear physics and the universe

• A hospital uses a radioactive source to sterilise medical equipment. The source emits alph… (5 marks, Explain)
• A technician is testing three different radioactive sources in a laboratory. Source A emit… (5 marks, Explain)
• A scientist is investigating the properties of alpha, beta and gamma radiation by placing … (5 marks, Describe)
• Electromagnetic waves form a continuous spectrum. Describe the electromagnetic spectrum, i… (5 marks, Describe)
• Electromagnetic waves can be harmful to the human body. Explain how three different types … (5 marks, Explain)
• Explain how a colour filter works and describe what happens when white light passes throug… (5 marks, Explain)
• A star like the Sun behaves as a black body. Explain how the temperature of a star is rela… (5 marks, Explain)
• Explain how a star's colour and peak emission frequency can be used to determine its surfa… (5 marks, Explain)
• Explain how the life cycle of a massive star differs from the life cycle of a star similar… (5 marks, Explain)
• A star spends most of its life as a main sequence star. Describe the life cycle of a star … (5 marks, Describe)
• Explain why objects that behave like a black body are considered ideal emitters and absorb… (5 marks, Explain)
• Electromagnetic waves are used in many different applications because of their different p… (5 marks, Describe)
• Explain why different objects appear different colours when white light shines on them, an… (5 marks, Explain)
• Radioactive substances emit radiation that can be alpha, beta or gamma. Explain why gamma … (5 marks, Explain)
• A smoke detector contains a small amount of a radioactive substance that emits alpha parti… (5 marks, Explain)