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MCAT Physics questions and answers Measurments

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1. Which one is not a branch of physical sciences?




2. Which branch of science plays an important role in the development of technology and engineering?




3. The number of categories in which physical quantities are divided are




4. How many types of units are in SI?




5. In scientific notation numbers are expressed in




6. 1024 can be written in scientific notation as




7. Preftix deca represents




8. The error in measurement may occur due to




9. The uncertainty in a measurement may occur due to




10. Random errors can be reduced by




11. In any measurement the significant figures are




12. A digit zero in a measurement




13. Number of significant figures in 0.0173 are




14. Smaller the least count of the instrument more is the measurement




15. The dimension of force is




16. ML-1 T-2 is the dimension of




17. Dimensional analysis is helpful for




18. Which equation is not dimensionally correct?




19. SI unit of coefficient of viscosity is




20. Three students measured length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is correct record?




21. One light year is equal to




22. Absolute uncertainty in a measurement depends upon




23. Steradian is the SI unit of




24. An ideal standard of measurement of a base quantity has characteristics




25. Total uncertainty, in result obtained from the subtraction of two measurement, is equal to




26. Which one is the highest power multiple?




27. One pico stands for




28. Unit of G is?




29. The unit of force is _________ and its symbol is __________. Which is the correct pair?




30. How many main frontiers of fundamental science?




31. Which one is the derived quantity in SI units?




32. Which one is the correct representation of the unit of pressure?




33. Which one is the dimensionally correct equation?




34. Zero error of the instrument is a type of




35. In multiplication and division of measurement




36. The number of significant figures in 5.400 are




37. To reduce the uncertainty in the timing experiment




38. The unmber of significant figures in the length of a bar 6200mm measured by meter rod are




39. The number 76.85 is rounded off upto two significant figures as




40. Which of the following is not a correct representation method for prefixes




41. Work done will be maximum if the angle between the force F and displacement d is




42. A field in which the work done in a moving a body along closed path is zero is called




43. When a force is parallel to the direction of motion of the body, then work done on the body is




44. Which of the following types of force can do no work on the particle on which it acts?




45. If a body a mass of 2 kg is raised vertically through 2m, then the work done will be




46. An elevator weighing 3.5 x 10-6 N is raised to a height of 1000 m in the absence of friction, the work done is




47. The average power and instantaneous power become equal if work is done at




48. The relation between horse power and watt is




49. Proton electron neutron and a particles have same momentum. Which of them have highest K.E?




50. Slope of work time graph is equal to