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 ____ of the instantaneous centre of a moving rigid body is called centroid.
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2. The mechanism of heat transfer from one point to another through vibration of the molecules of the medium is called -------------
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3. Instantaneous velocity is the velocity of a particle at some _____of its path.
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4. 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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5. When a gas is allowed to expand at constant _____the process is described as isothermal.
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6. The amount of heat stored in a substance depends on all of the following EXCEPT _______
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7. 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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8. 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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9. _______ is that which enables a body to perform work.
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10. Which of the following statements is not correct about reference frames?
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11. The statement "the specific latent heat of fusion of ice is $3.3times 10^{5}$J/kg" means ______
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12. When trying to turn a key into a lock, ____ of forces are applied.
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13. Which of the following physical concepts best explains why passengers in fast moving cars should always fasten their seat-belts?
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14. The motion of a ball rolling down a ramp is one with ________
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15. Which of the following contributes to the instability of an object?
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16. 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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17. The frictional force in fluids is known as ___________
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18. The heat required to raise the temperature of the body through 1K is called _______.
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19. Which of the following does NOT refer to the terms description of stability of on an object?
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20. 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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21. 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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22. The molecules of a liquid are held together by what type of forces?
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23. A Null vector is a vector whose magnitude is __________.
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24. The velocity of a particle moving with simple harmonic motion is ____ at the mean position.
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25. One of these is an example of thermal radiation detector
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26. 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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27. 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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28. The trajectory of a projectile is ________
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29. 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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30. When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.
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31. 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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32. The physical pendulum is any real pendulum in which all the mass is taken to be concentrated at a_____.
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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. According to the kinetic-molecular theory, particles of matter are in motion in both gas and _____.
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35. In which of the following phenomena is surface tension important?
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36. The speed of 90 hm/hr is equal to ------------------ m/s
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37. A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
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38. 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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39. 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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40. 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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41. Forces are called coplanar when all of them acting on body lie in one _____.
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42. Which of the following substances has the highest viscosity at room temperature?
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43. One of these is NOT a basic assumption of kinetic theory of ideal gases
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44. The general motion of a rigid body is a combination of ________and rotation.
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45. The fundamental interval of a thermometric scale is ______
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46. A cart is moving horizontally along a straight line with constant speed of 30 m/s. A projectile is fired from the moving cart in such a way that it will return to the cart after the cart has moved 80 m. At what speed (relative to the cart) and at what angle (to the horizontal) must the projectile be fired?
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47. Gases occupy volume of the __________.
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48. A man leaves the garrage in his house and drives to a neighbouring town which is twenty kilometres away from his house on sight-seeing. He returns home to his garrage two hours after. What is his average velocity from home in km/h?
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49. A _______ consists of two equal and opposite parallel forces.
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50. The _____of oscillations of a particle in simple harmonic motion is damped by resistive forces due to the surrounding medium.
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