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
1 / 50
1. Two forces act on a point object as follows: 100 N at $170^{o}$ and 100N at $50^{o}$. Find the resultant force
2 / 50
2. 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?
3 / 50
3. The velocity of a particle moving with simple harmonic motion is ____ at the mean position.
4 / 50
4. When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.
5 / 50
5. The physical pendulum is any real pendulum in which all the mass is taken to be concentrated at a_____.
6 / 50
6. The frictional force in fluids is known as ___________
7 / 50
7. A _______ consists of two equal and opposite parallel forces.
8 / 50
8. Which of the following contributes to the instability of an object?
9 / 50
9. 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
10 / 50
10. A Null vector is a vector whose magnitude is __________.
11 / 50
11. 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 ________
12 / 50
12. The coefficient of limiting static friction is the ratio of the ____ to the normal force.
13 / 50
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.
14 / 50
14. __________forces meet at one point and have their lines of action in different planes.
15 / 50
15. 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.
16 / 50
16. A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
17 / 50
17. A stone thrown from ground level returns to the same level 4 s after. With what speed was the stone thrown? Take $g = 10ms^{-2}$
18 / 50
18. A piece of stone has mass 80kg and density of 0.10 kg per meter cube. What is its volume in meter cube?
19 / 50
19. Thermal expansion of a solid material depends on the following EXCEPT __________
20 / 50
20. Which of the following substances has the highest viscosity at room temperature?
21 / 50
21. 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?
22 / 50
22. 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?
23 / 50
23. According to the kinetic-molecular theory, particles of matter are in motion in both gas and _____.
24 / 50
24. 3-vectors are only properly represented in a 3-dimensional _____.
25 / 50
25. The _____of oscillations of a particle in simple harmonic motion is damped by resistive forces due to the surrounding medium.
26 / 50
26. 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 $vec{a}cdot(vec{b}timesvec{c})$
27 / 50
27. 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?
28 / 50
28. 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?
29 / 50
29. 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 $$6^{o}C?$$
30 / 50
30. The _______ occurs when the driving frequency is the same as the natural frequency of the oscillator.
31 / 50
31. Which of the following statements is not correct about reference frames?
32 / 50
32. 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 _______
33 / 50
33. In which of the following phenomena is surface tension important?
34 / 50
34. 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?
35 / 50
35. One of these is an example of thermal radiation detector
36 / 50
36. When trying to turn a key into a lock, ____ of forces are applied.
37 / 50
37. 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?
38 / 50
38. _______ is that which enables a body to perform work.
39 / 50
39. A mass accelerates uniformly when the resultant force acting on it
40 / 50
40. 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}) $
41 / 50
41. 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 $g = 10ms^{-2}$
42 / 50
42. Which of these is correct about viscosity?
43 / 50
43. 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 ______
44 / 50
44. 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 _____________
45 / 50
45. When a gas is allowed to expand at constant _____the process is described as isothermal.
46 / 50
46. The main condition for the rigid body is that the distance between various particles of the body does not ____.
47 / 50
47. 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
48 / 50
48. The _________ is an aggregate of point masses such as that the relative separation between any two points remains invariant
49 / 50
49. The absolute zero temperature refers to the temperature at which _____
50 / 50
50. The speed of 90 hm/hr is equal to ------------------ m/s
Restart quiz
Rate this quiz
