 # PHY101

## Category:PHY101

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PHY101

1 / 50

The _____of oscillations of a particle in simple harmonic motion is damped by resistive forces due to the surrounding medium.

2 / 50

Which of the following is NOT a thermometric property?

3 / 50

What is common to the variation in the range and the height of a projectile?

4 / 50

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.

5 / 50

Instantaneous velocity is the velocity of a particle at some _____of its path.

6 / 50

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?

7 / 50

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?

8 / 50

A piece of stone has mass 80kg and density of 0.10 kg per meter cube. What is its volume in meter cube?

9 / 50

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 ___________.

10 / 50

The fundamental interval of a thermometric scale is ______

11 / 50

The motion of a ball rolling down a ramp is one with ________

12 / 50

When an object is in thermal equilibrium, it is losing and gaining heat at ____ rates.

13 / 50

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?

14 / 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 _____________

15 / 50

When trying to turn a key into a lock, ____ of forces are applied.

16 / 50

Two forces act on a point object as follows: 100 N at \$170^{o}\$ and 100N at \$50^{o}\$. Find the resultant force

17 / 50

Which of the following physical concepts best explains why passengers in fast moving cars should always fasten their seat-belts?

18 / 50

The method of mixtures as a means of measuring the amount of heat of a substance depends of the principle of conservation of ______

19 / 50

The mechanism of heat transfer from one point to another through vibration of the molecules of the medium is called -------------

20 / 50

The main condition for the rigid body is that the distance between various particles of the body does not ____.

21 / 50

What is the unit of impulse?

22 / 50

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?

23 / 50

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}\$

24 / 50

Which of the following contributes to the instability of an object?

25 / 50

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 ________

26 / 50

Forces are called coplanar when all of them acting on body lie in one _____.

27 / 50

One of these is an example of thermal radiation detector

28 / 50

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 _______

29 / 50

The physical pendulum is any real pendulum in which all the mass is taken to be concentrated at a_____.

30 / 50

On what thermometric property does the working of a thermistor depend?

31 / 50

The _________ is an aggregate of point masses such as that the relative separation between any two points remains invariant

32 / 50

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?

33 / 50

The coefficient of limiting static friction is the ratio of the ____ to the normal force.

34 / 50

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?

35 / 50

A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------

36 / 50

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}\$

37 / 50

Which of the following is NOT true?

38 / 50

Which of the following statements is not correct about reference frames?

39 / 50

Gases occupy volume of the __________.

40 / 50

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}\$

41 / 50

3-vectors are only properly represented in a 3-dimensional _____.

42 / 50

What are the dimensions of power (time rate of change of expending energy)

43 / 50

According to the kinetic-molecular theory, particles of matter are in motion in both gas and _____.

44 / 50

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?

45 / 50

Which of the following substances has the highest viscosity at room temperature?

46 / 50

The speed of 90 hm/hr is equal to ------------------ m/s

47 / 50

The general motion of a rigid body is a combination of ________and rotation.

48 / 50

The trajectory of a projectile is ________

49 / 50

The absolute zero temperature refers to the temperature at which _____

50 / 50

A Null vector is a vector whose magnitude is __________.

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