Summative Practice 9 (Question 3) – Form 4 Science (KSSM) Chapter 9

Question 3:Superconductor alloys have many uses now and in the future. Photograph 3 shows one of the uses of superconductor alloy in Maglev trains.(a) How is a superconductor alloy used in the construction of the Maglev train?(b) Give two other uses of superconductor alloys in daily life.(c) In your opinion, can the superconductor alloy be … Read more

Formative Practice 9.3 – Form 4 Science (KSSM) Chapter 9

Question 1:Name two natural polymers and synthetic polymers and their monomers. Answer: Question 2:Compare the properties of natural rubber and vulcanised rubber. Answer: Question 3:Describe how vulcanised rubber is produced from natural rubber. Answer:Heating natural rubber with sulphur• Natural rubber is heated at a temperature between 100°C to 150°C at high pressure • 3% to … Read more

Formative Practice 9.2 – Form 4 Science (KSSM) Chapter 9

Question 1:What is the main component in glass and ceramic? Answer:Glass: silica Ceramic: clay Question 2:State three applications of glass and ceramic. Answer:Glass:• to make laboratory apparatus such as beakers and conical flasks • to make cooking utensils such as glass pot, casserole dish • to make food container such as glass bottle Ceramic:• to … Read more