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On the contrary , knowledge of physics is useful in everyday situations as well as in nonscientific professions . It can help you understand how microwave ovens work , why metals should not be put into them , and why they might affect pacemakers . Physics allows you to understand the hazards of radiation and rationally evaluate these hazards more easily . Physics also explains the reason why a black car radiator helps remove heat in a car engine , and it explains why a white roof helps keep the inside of a house cool . Similarly , the operation of a car 's ignition system as well as the transmission of electrical signals through our body 's nervous system are much easier to understand when you think about them in terms of basic physics .
Please check all the words that can be used instead of the target word in the same context. Note that the morphology of the target (third person singular, past tense etc.) is considered to be applied to the candidate automatically in the process of paraphrasing.