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. What is the unit of impulse?
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2. A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
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3. The fundamental interval of a thermometric scale is ______
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4. The amount of heat stored in a substance depends on all of the following EXCEPT _______
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5. Which of the following contributes to the instability of an object?
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6. 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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7. 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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8. 3-vectors are only properly represented in a 3-dimensional _____.
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9. When trying to turn a key into a lock, ____ of forces are applied.
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10. Which of the following does NOT refer to the terms description of stability of on an object?
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11. The heat required to raise the temperature of the body through 1K is called _______.
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12. 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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13. A _______ consists of two equal and opposite parallel forces.
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14. 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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15. The coefficient of limiting static friction is the ratio of the ____ to the normal force.
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16. 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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17. On what thermometric property does the working of a thermistor depend?
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18. The velocity of a particle moving with simple harmonic motion is ____ at the mean position.
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19. The trajectory of a projectile is ________
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20. Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin
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21. When a gas is allowed to expand at constant _____the process is described as isothermal.
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22. The general motion of a rigid body is a combination of ________and rotation.
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23. 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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24. When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.
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25. FBQ25: A ________ is the turning effect caused by a couple.
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26. The speed of 90 hm/hr is equal to ------------------ m/s
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27. 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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28. Which of the following is NOT a thermometric property?
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29. A Null vector is a vector whose magnitude is __________.
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30. One of these is an example of thermal radiation detector
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31. 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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32. 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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33. Instantaneous velocity is the velocity of a particle at some _____of its path.
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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. Gases occupy volume of the __________.
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36. The _______ occurs when the driving frequency is the same as the natural frequency of the oscillator.
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37. What is common to the variation in the range and the height of a projectile?
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38. Which of the following is NOT an effect of heat on a substance?
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39. One of these is NOT a basic assumption of kinetic theory of ideal gases
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40. 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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41. __________forces meet at one point and have their lines of action in different planes.
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42. 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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43. Which of the following substances has the highest viscosity at room temperature?
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44. 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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45. 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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46. Applied force is proportional to extension produced is a statement of ____ law.
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47. What are the dimensions of power (time rate of change of expending energy)
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48. 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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49. 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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50. The motion of a ball rolling down a ramp is one with ________
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