physics test

Jun 17th, 2015
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1. Which of the following unit conversions is not correct?A 230 Ms = 2.3 x 108 sB 360 ms = 3.6 x 10-1 s C 0.0013s = 1.3 ms D 2.34 x 105 s = 23.4 ks 2. Which of the following unit conversions is correct?A 2.5 m2 = 250 cm2 B 5.6 m3 = 560 cm2 C 4500 cm2 = 45 m2 D 2.5 x 107 cm3 = 25 m3

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PHYSICS FORM 4 REVISIONChapter 1: Introduction to Physics1. Which of the following unit conversions is not correct?A230 Ms = 2.3 x 108 sB360 ms = 3.6 x 10-1 sC0.0013s = 1.3 msD2.34 x 105 s = 23.4 ks2. Which of the following unit conversions is correct?A2.5 m2 = 250 cm2B5.6 m3 = 560 cm2C4500 cm2 = 45 m2D2.5 x 107 cm3 = 25 m33. 4. Table above shows the measurements of the thickness of form 4 Physics textbook made by 4 students Joslina, Valentina, Nee Na and Mina. Which set of the readings is consistent but less accurate? (Assume that the actual reading of the thickness is 1.92 cm.)AJoslinaBNee NaCValentinaDMina5. 6. 7. Figure (a) above shows the zero error of a vernier calliper. Figure (b) shows the reading on the vernier calliper when measuring the length of an object. Find the correct reading of the measurement.A2.03 cmB2.07 cmC2.05 cmD2.15 cm8. 9. 10. A student was asked to measure the thickness of a sheet of paper. The diagram shows the reading on a micrometer when he measured the thickness 50 sheets of similar paper. What is the thickness of the paper?A4.44 mmB4.44 cmC0.089 mmD0.089 cm11. Chapter 2: Force and Motion12. An object accelerates from stationary with the acceleration of 4 ms-2. What is the velocity of the object after 7s?13. 14. 15. 16. 17. 18. 19. How fast will the balls move if this is:(a) Elastic collision?20. 21. 22. 23. 24. (b) Inelastic collision?25. 26. 27. 28. What is the princip

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