ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
PHY101
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1. The speed of 90 hm/hr is equal to ------------------ m/s
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2. What is common to the variation in the range and the height of a projectile?
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3. An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take $g = 10ms^{-2}$
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4. A string of natural length L extends to a new length L' under tensile force F. If Hooke’S law applies, the work done in stretching the spring is ------------
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5. One of these is an example of thermal radiation detector
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6. A perfectly ____ body is defined as one which emits every wavelength with the maximum energy for each wavelength for the particular temperature of the body.
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7. A piece of stone has mass 80kg and density of 0.10 kg per meter cube. What is its volume in meter cube?
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8. The term that best describes the need to hold the butt of a riffle firmly against the shoulder when firing to minimise impact on the shoulder is ________
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9. The mechanism of heat transfer from one point to another through vibration of the molecules of the medium is called -------------
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10. The molecules of a liquid are held together by what type of forces?
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11. How fast must a ball be rolled along the surface of a 70-cm high table so that when it rolls off the edge it will strike the floor at the same distance (70cm) from the point directly below the edge of the table?
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12. The resultant of vectors $vec{A}$ and $vec{B}$ has a magnitude of 20 units.$vec{A}$ has a magnitude of 8 units, and the angle between $vec{A}$ and $vec{B}$ is $40^{o}$. Calculate the magnitude of $vec{B}$
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13. When a gas is allowed to expand at constant _____the process is described as isothermal.
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14. The _________ is an aggregate of point masses such as that the relative separation between any two points remains invariant
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15. Which of the following physical concepts best explains why passengers in fast moving cars should always fasten their seat-belts?
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16. The _____of oscillations of a particle in simple harmonic motion is damped by resistive forces due to the surrounding medium.
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17. One of these is NOT a basic assumption of kinetic theory of ideal gases
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18. The physical pendulum is any real pendulum in which all the mass is taken to be concentrated at a_____.
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19. FBQ25: A ________ is the turning effect caused by a couple.
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20. Calculate the root-mean-square velocity of oxygen molecules at room temperature, 25 oC. Given that molar mass of oxygen and molar gas constant are 31.9998 g/mol and 8.3143 J/mol K, respectively in meter per second.
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21. The fundamental interval of a thermometric scale is ______
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22. A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true?
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23. The ____ of the instantaneous centre of a moving rigid body is called centroid.
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24. When the junctions of two dissimilar metals are maintained at different temperatures an electromotive force is is set up in the circuit of which these junctions are a part. A pair of junctions of this kind is known as _____________
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25. The general motion of a rigid body is a combination of ________and rotation.
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26. According to principle of moment, if a system of coplanar forces is in equilibrium, then the algebraic ____of their moments about any point in their plane is zero
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27. In which of the following phenomena is surface tension important?
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28. The coefficient of limiting static friction is the ratio of the ____ to the normal force.
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29. If a force of 40N acting in the direction due East and a force of 30N is acting in the direction due North. Then the magnitude of the resultant forces will be ___________.
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30. A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
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31. A rope suspended from a ceiling supports an object of weight W at its opposite end. Another rope tied to the first at the middle is pulled horizontally with a force of 30N. The junction P of the ropes is in equilibrium. Calculate the weight W and the tension T in the upper part of the first rope
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32. Which of the following is NOT an effect of heat on a substance?
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33. What is the unit of impulse?
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34. The trajectory of a projectile is ________
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35. A 50kg boy suspends himself from a point on a rope tied horizontally between two vertical poles. The two segments of the rope are then inclined at angles 30 degrees and 60 degrees respectively to the horizontal.The tensions in the segments of the rope in newtons are ______
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36. The method of mixtures as a means of measuring the amount of heat of a substance depends of the principle of conservation of ______
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37. An object is shot from the ground at 75m/s at an angle of 45 degrees above the horizontal. How high does the object get before beginning its descent?
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38. Thermal expansion of a solid material depends on the following EXCEPT __________
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39. An electric kettle contains 1.5 kg of water at $$100 ^{o}$$ and powered by a 2.0 kW electric element. If the thermostat of the kettle fails to operate, approximately how long will it take for the kettle boil dry? (Take the specific latent heat of vaporization of water as $2000kJkg^{-1}) $
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40. Which of the following is NOT a thermometric property?
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41. Given three vectors $vec{a} = {-}vec{i}{-}4vec{j}+2vec{k}$, $vec{b} = 3vec{i}+2vec{j}-2vec{k}$, $vec{c} = 2vec{i}{-}3vec{j}+vec{k}$, calculate $vec{a}cdot(vec{b}timesvec{c})$
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42. Which of the following is NOT true?
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43. A stone thrown from ground level returns to the same level 4 s after. With what speed was the stone thrown? Take $g = 10ms^{-2}$
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44. Two forces act on a point object as follows: 100 N at $170^{o}$ and 100N at $50^{o}$. Find the resultant force
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45. According to the kinetic-molecular theory, particles of matter are in motion in both gas and _____.
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46. The frictional force in fluids is known as ___________
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47. A Null vector is a vector whose magnitude is __________.
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48. On what thermometric property does the working of a thermistor depend?
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49. Given that the specific capacity of ice is one-half that of water, does is take more thermal energy to raise the temperature of 5 g of water or 5 g of ice by $$6^{o}C?$$
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50. When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.
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