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PAPER 3 SECTION A. FORMAT :PAPER 3. 50. 0. 42.2. 5. 0. 4.22. 25. 00. 17.81. (2 d.p. ). 56.1. 5.61. 31.47. 61.3. 66.2. 6.13. 6.62. 37.58. 43.82. Acceptable graph. A. B. C. D. Length of the pendulum. Period of oscillation. Mass of the pendulum bob. .0. .00. .00.
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PAPER 3 SECTION A BY PN. TAN SHIM YU
FORMAT :PAPER 3 BY PN. TAN SHIM YU
50.0 42.2 5.0 4.22 25.00 17.81 (2 d.p.) 56.1 5.61 31.47 BY PN. TAN SHIM YU
61.3 66.2 6.13 6.62 37.58 43.82 BY PN. TAN SHIM YU
Acceptable graph A B C D BY PN. TAN SHIM YU
Length of the pendulum Period of oscillation Mass of the pendulum bob BY PN. TAN SHIM YU
.0 .00 • .00 BY PN. TAN SHIM YU
more than 1 cm • Unacceptable graph B A C D more than 1 cm BY PN. TAN SHIM YU
more than 0.5 cm Unacceptable graph Rejected graph Rejected graph Rejected graph more than 0.5 cm A B D C BY PN. TAN SHIM YU
Square of period increases linearly with the length of the pendulum. OR T2 increases linearly with l. BY PN. TAN SHIM YU
a b a b Relationship between variables A) a is inversely proportional to b B) a is directly proportional to b C) a increases linearlywith b A) a is inversely proportional to b B) a is directly proportional to b • C) a increases linearly with b BY PN. TAN SHIM YU
a b a 1/b Relationship between variables A) a is inversely proportional to b B) a is directly proportional to b • • C) a increases linearly with b • A) a is inversely proportional to b • B) a is directly proportional to 1/b • C) aincreases linearly with 1/b BY PN. TAN SHIM YU
Relationship between variables a A) a is inversely proportional to b B) a is directly proportional to b C) a is linearly increasing with b a increases with b b a A) a is inversely proportional to 1/b B) a is directly proportional to 1/b C) a is linearly increasing with 1/b 1/b BY PN. TAN SHIM YU
Question 2 Acceleration of the trolley is directly proportional to height of the inclined plane BY PN. TAN SHIM YU
line • extrapolation • • 1.5ms-2 • • (1.25-0) ms-2 • 0.25 m • = 5.00 s-2 • values/coordinates • with unit BY PN. TAN SHIM YU
(c) (b) BY PN. TAN SHIM YU
(d) 1) Ensure the trolley moves down the incline without knocking the sides so that motion is not blocked. 2) Ensure the tape runs freely through the ticker timer without being impeded 3) Reduce the friction in the wheels by using oil so that the trolley can move smoothly 4) Repeat the expt so that a mean reading can be calculated to increase accuracy 5) When measuring height make sure the eyes is perpendicular to the ruler to avoid parallax error. * statement without how is not accepted e.g. Make sure runway is smooth BY PN. TAN SHIM YU
Question 3 (i) Temperature (ii) Length of the air column (iii) Pressure of the trapped air/ diameter of the capillary tube (b) (i) The eye must be at a position which is level with the top section of the meniscus of the air column (c) BY PN. TAN SHIM YU
l increases linearly with Ө The capillary tube and ruler must be parallel/ The trapped air column must be fully immersed in water. BY PN. TAN SHIM YU