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 molecules of a liquid are held together by what type of forces?
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2. 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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3. 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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4. 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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5. 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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6. Which of the following is NOT true?
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7. What are the dimensions of power (time rate of change of expending energy)
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8. 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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9. 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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10. 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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11. 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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12. The _____of oscillations of a particle in simple harmonic motion is damped by resistive forces due to the surrounding medium.
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13. 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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14. The main condition for the rigid body is that the distance between various particles of the body does not ____.
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15. The absolute zero temperature refers to the temperature at which _____
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16. Which of these is correct about viscosity?
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17. Which of the following is NOT a thermometric property?
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18. Which of the following substances has the highest viscosity at room temperature?
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19. 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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20. The physical pendulum is any real pendulum in which all the mass is taken to be concentrated at a_____.
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21. 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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22. What is common to the variation in the range and the height of a projectile?
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23. The amount of heat stored in a substance depends on all of the following EXCEPT _______
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24. 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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25. A Null vector is a vector whose magnitude is __________.
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26. On what thermometric property does the working of a thermistor depend?
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27. Which of the following is NOT an effect of heat on a substance?
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28. A boy intends to move an m-kg crate across the floor by applying a constant force P newtons on it.The coeficient of friction between the floor and the crate is $mu$. Which of these is the best option for his task?
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29. Instantaneous velocity is the velocity of a particle at some _____of its path.
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30. 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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31. One of these is NOT a basic assumption of kinetic theory of ideal gases
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32. According to the kinetic-molecular theory, particles of matter are in motion in both gas and _____.
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33. 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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34. 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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35. 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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36. A _______ consists of two equal and opposite parallel forces.
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37. 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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38. The ____ of the instantaneous centre of a moving rigid body is called centroid.
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39. 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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40. A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
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41. Thermal expansion of a solid material depends on the following EXCEPT __________
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42. The trajectory of a projectile is ________
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43. The _________ is an aggregate of point masses such as that the relative separation between any two points remains invariant
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44. Which of the following physical concepts best explains why passengers in fast moving cars should always fasten their seat-belts?
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45. The statement "the specific latent heat of fusion of ice is $3.3times 10^{5}$J/kg" means ______
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46. 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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47. When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.
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48. __________forces meet at one point and have their lines of action in different planes.
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49. 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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50. 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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