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Conceptual Physics, 12e (Hewitt) Chapter 24 Magnetism 24.1 Multiple-Choice Questions 1) Magnetic compasses reportedly were first used for navigation by A) Aristotle. B) Australian aborigines. C) Chinese sailors. D) none of the above Answer: C Diff: 1 Topic: Magnetism 2) The source of all magnetism is A) tiny pieces of iron. B) tiny domains of aligned atoms. C) ferromagnetic materials. D) moving electric charge. E) none of the above Answer: D Diff: 1 Topic: Magnetism 3) The fo...

2025 Pearson Edexcel Level 1Level 2 GCSE (9–1) Physics PAPER 2 JUNE Question Paper and Mark Scheme COMBINED

Answer ALL questions. Write your answers in the spaces provided. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 Figure 1 shows a bat and its prey. bat prey Figure 1 The bat emits a high frequency sound pulse to locate its prey. The speed of sound in air is 330m/s. (a) The wavelength of the sound is 11mm. Calculate the frequency of the sound. Use the equation (2) ...