question 3B please answer this question!!! (b) Impact testing methods such as Charpy and Izod test are

question 3B please answer this question!!!

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(b) Impact testing methods such as Charpy and Izod test are commonly employed to measure the impact toughness of materials. (i) Define impact toughness of a material. [1 mark] (ii) Explain how the impact toughness value of a specimen is obtained by referring to the illustration in Figure Q3(b). angle scale Figure Q3(b): Illustration of impact-testing apparatus [4 marks] (b) Impact testing methods such as Charpy and Izod test are commonly employed to measure the impact toughness of materials. (i) Define impact toughness of a material. [1 mark] (ii) Explain how the impact toughness value of a specimen is obtained by referring to the illustration in Figure Q3(b). angle scale Figure Q3(b): Illustration of impact-testing apparatus [4 marks]