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. 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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2. The heat required to raise the temperature of the body through 1K is called _______.
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3. 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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4. The velocity of a particle moving with simple harmonic motion is ____ at the mean position.
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5. Thermal expansion of a solid material depends on the following EXCEPT __________
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6. Which of the following substances has the highest viscosity at room temperature?
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7. Gases occupy volume of the __________.
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8. The _________ is an aggregate of point masses such as that the relative separation between any two points remains invariant
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9. What is the unit of impulse?
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10. The trajectory of a projectile is ________
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11. The speed of 90 hm/hr is equal to ------------------ m/s
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12. 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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13. Which of the following is NOT an effect of heat on a substance?
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14. The amount of heat stored in a substance depends on all of the following EXCEPT _______
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15. The _______ occurs when the driving frequency is the same as the natural frequency of the oscillator.
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16. 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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17. Which of the following physical concepts best explains why passengers in fast moving cars should always fasten their seat-belts?
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18. When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.
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19. 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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20. The general motion of a rigid body is a combination of ________and rotation.
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21. FBQ25: A ________ is the turning effect caused by a couple.
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22. 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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23. Which of the following is NOT true?
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24. The ____ of the instantaneous centre of a moving rigid body is called centroid.
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25. One of these is NOT a basic assumption of kinetic theory of ideal gases
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26. 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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27. Instantaneous velocity is the velocity of a particle at some _____of its path.
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28. A body hangs from a spring balance supported from the roof of an elavator. If the elavator has an upward acceleration of $3ms^{-2}$ and the balance reads 50 N, what is the true weight of the body?
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29. 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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30. The main condition for the rigid body is that the distance between various particles of the body does not ____.
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31. According to the kinetic-molecular theory, particles of matter are in motion in both gas and _____.
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32. When a gas is allowed to expand at constant _____the process is described as isothermal.
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33. An ungraduated mercury thermometer attached to a millimeter scale reads 22.8mm in ice and 242mm in steam at standard pressure. What will the millimeter read when the temperature is 20^{o} C?
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34. The rise in the level of a liquid in a tube is h. If half the amount is poured outside, what will be the new rise in the liquid level?
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35. 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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36. The specific latent heat of vapourization of a liquid is the quantity of heat in joules required to change 1kg mass of the liquid at its _______to gas at the same temperature.
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37. A ball is kicked and flies from point P to Q following a parabolic path in which the highest point reached is T. The acceleration of the ball is _______
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38. Which of the following does NOT refer to the terms description of stability of on an object?
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39. 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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40. On what thermometric property does the working of a thermistor depend?
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41. 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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42. Applied force is proportional to extension produced is a statement of ____ law.
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43. 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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44. A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
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45. 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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46. _______ is that which enables a body to perform work.
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47. 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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48. A _______ consists of two equal and opposite parallel forces.
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49. Radius of _________ is the radial distance from any given axis at which the mass of a body is concentrated without changing the moment of inertia of the body about that axis.
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50. A wire of cross-sectional area of $6times10{-5}m^{2}$ and length 50cm stretches by 0.2mm under a load of 3000N. Calculate the Young’s modulus for the wire
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