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2. Joule is a unit ofa) Energyb) Torquec) Powerd) ForceDeselect Answer
3. The number of significant figures in 0.07200a) 6 b) 2 c) 4 d) 5Deselect Answer
4. The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures isa) 663.821 b) 663.8 c) 664 d) 663.82Deselect Answer
5. The mass and volume of a body are 4.237 kg and 2.5 m3 The density of the material of the body in correct significant figures is:a) 1.6948 kg m-3b) 1.69 kg m-3c) 1.7 kg m-3d) 1.695 kg m-3Deselect Answer
6. The numbers 3.645 and 3.635 on rounding off to 3 significant figures will givea) 3.65 and 3.64 b) 3.64 and 3.63 c) 3.65 and 3.63 d) 3.64 and 3.64Deselect Answer
8. Which of the following measurements is most precise?a) 5.00 mmb) 5.00 𝑐𝑚 c) 5.00 𝑚 d) 5.00 𝑘𝑚Deselect Answer
9. The mean length of an object is 7 cm. Which of the following measurements is most accurate?a) 6.9 cm b) 6.852 c) 7.25d) 7.5Deselect Answer
10. Which of the following are not unit of time?a) Second b) year c) Light Year d) DecadesDeselect Answer