Physical properties of metals practice exercise 3

A blacksmith in Eldoret wants to create traditional metal ornaments that can be easily shaped without breaking. Which physical property of metals should he prioritize, and which metal would be most suitable for this task? Explain. (2 marks)

A carpenter wants to make cooking pots that heat quickly. What physical property of the metal should he consider when choosing the material, and why?  (2 marks)

A carpenter wants to make cooking pots that heat quickly. What physical property of the metal should he consider when choosing the material, and why?  (2 marks)

A cook in a hotel in Nakuru complains that one type of cooking pot takes longer to heat than another, even though they are the same size. Based on your knowledge of physical properties of metals, what might be the reason? (1 mark)

A school electrician in Mombasa is replacing wires in the science lab. What two physical properties of copper make it suitable for wiring, and why are they important?  (2 marks)

A school electrician in Mombasa is replacing wires in the science lab. What two physical properties of copper make it suitable for wiring, and why are they important?  (2 marks)

A technician is repairing an electric motor at a borehole in Garissa. He wants to replace some components that carry electric current. What two physical properties of the replacement metal must he check and why? (2 marks)

Isaac is building a footbridge across a small river in his village. Which two physical properties should he consider when choosing a metal alloy for the bridge structure? Explain your choices.  (2 marks)

 A group of pupils at Nyeri Primary School is asked to collect materials to build a model of a solar cooker. They are given the option to use metal, plastic, or wood for the base and cooking tray. Their science teacher tells them, “Metals have properties that make them most suitable for this task.” Based on this situation, list and explain any five physical properties of metals that make them more suitable for building the solar cooker than plastic or wood. (5 marks)

Look at the diagram showing different household items: a cooking pot, a metal gate, and a metal wire. Which physical property of metals is important for each item, and explain your answer. (3 marks)

Look at the diagram below  showing different household items: a cooking pot, a metal gate, and a metal wire. Which physical property of metals is important for each item, and explain your answer. (3 marks)

The diagram below shows a broken power line hanging over wet ground during rainfall in Kisumu. What physical property of the metal wire makes this situation dangerous?  (1 mark)

The diagram below shows a water tank stand made of metal bars in Turkana. After several years of sun exposure, some parts of the stand appear bent. Which physical property of the metal is responsible for this deformation, and how could this problem be prevented in future construction?  (2 marks)