Sec 1 2024 Peicai Secondary School Science EOY

This document consists of 25 printed pages and 1 blank page. Setter: Ms Han Lijun PEICAI SECONDARY SCHOOL SECONDARY ONE G3 END OF YEAR EXAMINATION 2024 CANDIDATE NAMECLASS REGISTER NUMBERSCIENCE 2 October 2024 1 hour 30 minutes Candidates answer on the Question Booklet. Additional materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write your name, class and register number on all the work you hand in. Write in dark blue or black pen in the spaces provided on the Question Paper. You may use a soft pencil for any diagrams, graphs, tables or rough working. Do not use staples, paper clips, glue or correction fluid. Section A There are twenty questions in this Section. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet provided. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Section B and Section C Answer all questions. Write your answers in the spaces provided on the question paper. If working is needed for any question, it must be shown with the answer. pYou are allowed to use a calculator. A copy of the Periodic Table is provided on page 26. The number of marks is given in brackets [ ] at the end of each question or part question. The total number of marks for this paper is 70. 70www.KiasuExamPaper.com 195

2 Section A1There are four investigation topics for a study on exercise habits.1 investigating the average duration of an exercise session2 investigating the frequency of exercise per week among young adults3 investigating the mental health benefits of exercise4 investigating the reasons that motivate people to exerciseWhich pair of investigations will require the collection of qualitative data?A1 and 2 B1 and 4 C2 and 3 D3 and 4 2A compound, named benzene, is a liquid at room temperature. It catches fire easily and its vapour is toxic. 1 2 3 4 Which hazard symbols will be found on a bottle of benzene?A1 and 2B1 and 3C2 and 3D3 and 4 www.KiasuExamPaper.com 196

3 [Turn over 3Which position of the eye will result in an accurate reading of the volume of liquid? A B C D4A student measures the mass of an object on an electronic balance.The electronic balance shows a reading of 0.50 g before she put the object on it.What is the type of error shown?Aconsistent parallax errorBconsistent zero errorCunpredictable parallax errorDunpredictable zero error www.KiasuExamPaper.com 197

4 5A set of digital calipers is used to measure the external diameter of the boiling tube.The glass boiling tube has an external diameter of 26.2 mm and an internal diameter of 24.0 mm. What is the thickness (t) of the glass wall of the boiling tube?A1.1 mmB2.2 mmC24.0 mmD26.2 mm 24.0mm t 26.2mm boiling tube www.KiasuExamPaper.com 198

5 [Turn over 6A load is placed on two rods, P and Q, made from different materials.Rod P sags a little when the load