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 wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
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2. Thermal expansion of a solid material depends on the following EXCEPT __________
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3. What is the unit of impulse?
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4. The mechanism of heat transfer from one point to another through vibration of the molecules of the medium is called -------------
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5. One of these is NOT a basic assumption of kinetic theory of ideal gases
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6. The _____of oscillations of a particle in simple harmonic motion is damped by resistive forces due to the surrounding medium.
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7. 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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8. Which of the following does NOT refer to the terms description of stability of on an object?
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9. The heat required to raise the temperature of the body through 1K is called _______.
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10. Which of the following is NOT true?
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11. 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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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. A _______ consists of two equal and opposite parallel forces.
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14. Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin
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15. On what thermometric property does the working of a thermistor depend?
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16. One of these is an example of thermal radiation detector
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17. 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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18. The statement "the specific latent heat of fusion of ice is $3.3times 10^{5}$J/kg" means ______
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19. The molecules of a liquid are held together by what type of forces?
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20. 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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21. 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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22. The frictional force in fluids is known as ___________
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23. __________forces meet at one point and have their lines of action in different planes.
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24. 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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25. What is common to the variation in the range and the height of a projectile?
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26. The main condition for the rigid body is that the distance between various particles of the body does not ____.
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27. Which of the following is NOT a thermometric property?
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28. 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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29. 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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30. Applied force is proportional to extension produced is a statement of ____ law.
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31. 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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32. 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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33. A Null vector is a vector whose magnitude is __________.
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34. The fundamental interval of a thermometric scale is ______
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35. The general motion of a rigid body is a combination of ________and rotation.
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36. Gases occupy volume of the __________.
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37. The _______ occurs when the driving frequency is the same as the natural frequency of the oscillator.
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38. The amount of heat stored in a substance depends on all of the following EXCEPT _______
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39. 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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40. When a gas is allowed to expand at constant _____the process is described as isothermal.
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41. The speed of 90 hm/hr is equal to ------------------ m/s
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42. _______ is that which enables a body to perform work.
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43. Which of these is correct about viscosity?
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44. The motion of a ball rolling down a ramp is one with ________
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45. 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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46. What are the dimensions of power (time rate of change of expending energy)
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47. 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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48. The physical pendulum is any real pendulum in which all the mass is taken to be concentrated at a_____.
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49. Which of the following substances has the highest viscosity at room temperature?
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50. The _________ is an aggregate of point masses such as that the relative separation between any two points remains invariant
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