PHYSICS 1 2024.pdf

Any additional item(s) answered will not be scored. All answers must be written in the booklets provided. PAPER 1 PAPER 1 535/1 2HOURS 30MINUTES This paper consists of two sections; A and B it has seven examination items. Section A has three compulsory items. INSTRUCTIONS TO CANDIDATES THEORY Section B has two parts; I and II. Answer one question from each part. Answer five items in all. 2 1 2 hours 1 PHYSICS PHYSICS UGANDA CERTIFICATE OF EDUCATION Item 2 Answer all the items from this section. As a physics learner, help the two experimenters;  Wavelength of visible light is 500nm  Frequency of visible light is 6𝑥1014𝐻𝑧  Wavelength of sound in air is 1.7m and sound frequency of 200Hz dark, yet on earth, the sky is blue during the day. c) (i) Compare the properties of light waves and sound waves Hint: SECTION A 2 Task: (ii) Confirm that light travels faster than sound. Two astronauts were conducting a simulation on how to communicate effectively while on the moon. They decided to test this by standing a short distance apart and attempting to talk to each other. To their surprise, they couldn’t hear anything, even though they were shouting. Confused but determined, they tried using a telephone system designed for lunar communication. This time, they were able to hear each other perfectly. As they continued their experiments, a sudden flash of lightening followed by thunder occurred in the simulation environment. They noticed that the flash the flash of lightning was visible