2020-Sec-4-Pure-Physics-SA2-Gan-Eng-Seng

This paper consists of 16 pages including the cover page GAN ENG SENG SCHOOL Preliminary Examination 2020 CANDIDATE NAME CLASS INDEX NUMBER PHYSICS Paper 1 Multiple Choice Sec 4 Express 6091/01 14 September 2020 1 hour Additional Materials: OTAS Calculators are allowed in the examination READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correcti on fluid. Write your name, class and index number on the OTAS. There are forty questions in this paper. Answer all questions. F or each question there are four possible answers A , B , C , and D . Choose the one you consider correct and record your choice in s oft pencil on the separate OTAS. Read the instructions on the OTAS very carefully. Each correct answer will score one mark. A mark will not be ded ucted for a wrong answer. Any rough working should be done in this booklet. Total Marks 40

GESS 4EXP PHY P1 PRELIM 20 CHL 2 1 Which of the following vector addition shows correctly the ad dition of two forces? A B C D 2 Which of the following representing the longest length? A 400 μm B 0.004 Gm C 4 000 dm D 40 Mm 3 Object X falls freely from rest for 3 seconds and object Y al so falls freely from rest for 6 seconds. Which of the following statements is true ? A Y falls half as far as X. B Y falls twice as far as X. C Y falls three times as far as X. D Y falls four times as far as X.

GESS 4EXP PHY P1 PRELIM 20 CHL 3 4 Joash threw a ball vertically upwards at an initial speed of 3 0 m s -1 . What is the distance travelled by the ball 5 s after the throw? A 7 5 m B 6 5 m C 4 5 m D 2 5 m 5 The graph below shows the force acting on a 1 kg block of wood which is originally moving at 6 m s -1 on a table. If the table has a friction of 2 N, what is the velocity-time graph of the wood? F app / N t / s 0 2 3 5 4 8 A B v / m s -1 6 14 20 v / m s -1 0 6 8 10 20 2 3 5 v / m s -1 6 20 8 10 v / m s -1 6 10 14 C D 2 3 5 0 t / s t / s t / s t / s 5 3 2 2 3 5 0 0

GESS 4EXP PHY P1 PRELIM 20 CHL 4 6 Which of the following will experience the largest inertia? A A bowling ball that is rolling at 20 m/s. B A basketball that is falling at a rate of 10 m/s 2 . C An elephant that is at rest. D A car that is travelling at 100 km/h. 7 Hydrometers are used to measure the density of four different liquids, P , Q , R and S as shown. Which arrangement shows correctly the decreasing density of the four liquids? A Q , R , P , S B Q , R , S , P C S , P , Q , R D S , P , R , Q 8 Which of the fol