Q1 The of a force about a point is measured by the product of the force and the perpendicular distance from the line of action of the force to the point.

Q2 A body is one in which the constituent parts have fixed distances from each other.

Q3 The sharpness of the curve is called the Q-factor

Q4 occurs when the driving frequency is the same as the natural frequency of the oscillator resulting in a maximum amplitude of oscillation

Q5 A oscillation is one for which periodic impulse drives it against resistive forces

Q6 A heavily motion is one for which no oscillation occurs when it is released.

Q7 oscillation is one for which the amplitude of oscillation is constant in the absence of resistive forces

Q8 An oscillation is said to be if its amplitude of the oscillation gradually decreases to zero over time as a result of resistive force arising from the surrounding medium

Q9 During simple harmonic motion of an object, there is a constant interchange of of the object between its kinetic and potential forms

Q10 If the displcacement from its equilibrium position of a particle undergoing simple harmonic motion is very small, the force obeys Hooke's law

Q11 The displacement, velocity and acceleration of a particle undergoing a simple harmonic motion could be represented by a function

Q12 A simple harmonic motion is a periodic vibration of a body whose acceleration is directly proportional to its from a fixed point and is always directed towards this point i.e. a = - constant x

Q13 force is required for a simple harmonic motion to continue

Q14 A joule is a unit of

Q15 1 horse power is equal to W

Q16 A physical quantity which has the same dimensions as moment of a force is

Q17 Liquids which make angles of contact do not wet the surfaces of their containers

Q18 Mecury in a glass tube forms meniscus.

Q19 Lead shots are manufactured by spraying molten lead from a height so that they form spheres as they fall through the air under the influence of the force of gravity. The forces responsible for the formation of the spheres are forces.

Q20 force between glass and water molecules is greater than the force between water molecules.

Q21 The angle of contact for clean water and clean glass is _.

Q22 The coefficient of is defined as the force per unit length acting normally on one side of a line on the surface of a liquid

Q23 Two neighbouring layers of a fluid have different velocities 4cm/s and 2cm/s respectively They are seperated by a distance of 4cm. Their average velocity gradient is /s to one place of decimal

Q24 A person standing close to a fast moving trai experinces suction effect. This is an application of __'s principle

Q25 Poise is the SI unit of _.

Q26 The frictional force required to maintain a unit velocity gradient between two layers of a fluid in relative motion, each of a unit area, is the coefficient of _.

Q27 The viscous force F acting on a spherical body of radius r moving through a viscous fluid at velocity v is given as $F=6\pi\eta{r}v$. This is __'s law.

Q28 An object falling freely through a viscous fluid soon attains a maximum andd constant velocity called

Q29 The equation $P + \frac{1}{2}\rho{v^{2}} +\rho{gy }= consant$, where $\rho$ stands for density, P for pressure, v for fluid velocity, g the acceleration due to gravity and y the height is _'s equation

Q30 The term defines frictional force in fluids

Q31 The term flow is used to describe uniform and non-turbulent flow of a fluid, assuming the liquid is incompressible.

Q32 law states that if two systems A and B are seperately in thermal equilibrium with a third system C, then they are in thermal equilibrium with each other

Q33 The path followed by a fluid particle in a steady flow as it travels the length of a pipe is referred to as

Q34 's apparatus is used to compare the relative densities of two different liquids

Q35 __'s principle explain the uniform or equal transmission of pressure in all directions in a fluid

Q36 A body wholly or partially immersed in a fluid experience which is equal to the weight of the fluid displaced

Q37 The kinetic energy per degree of freedom of a molecule of a monoatomic gas can be given interms of k and T where the symbols have thier usual meaning, as KE = . You may choose your answer from the list:(3kT/2, kT/3, kT/2, kT)

Q38 distribution is concerned with the distribution molecular speeds of a given closed system at a particular temperature

Q39 In the equation E = Tensile stress/tensile strain, E stands for __'s modulus of elasticity

Q40 A material that can easily be drawn into a wire as it undergoes plastic deformation is said te be

Q41 point is reached when the molecules of a loaded piece of wire begin to slide past each other as it exceeds its elastic limit

Q42 The process whereby molecules move from the region of high concentration to that of low concentration until equilibrium is established within the system is called

Q43 $$\vec{i}\cdot\vec{i}=\vec{j}\cdot\vec{j}=\vec{k}\cdot\vec{k}$$=

Q44 In the quantity $$\vec{a}=a_{x}\vec{i}+a_{y}\vec{j}$$, $$\vec{j}$$ is the along the y-direction.

Q45 A quantity is completely specified by its magnitude and direction

Q46 Work and moment of a force have the same

Q47 The of a physical quantity is the relationship between the unit of the quantity and the units of the fundamntal quantities

Q48 Quantities units which are obtained by a combination of the basic or fundamental quantities are called quantities

Q49 All motions are and not absolute

Q50 A of reference is a set of coordinate axes used to describe the motion of an object.

Q51 Which of the following substances has the highest viscosity at room temperature?
Water
kerosine
palm oil
alcohol

Q52 In which of the following phenomena is surface tension important?
the floating of a boat in water
the floating of a steel wire in water
the floating of a ballon in air
the floating of a plastic sphere in water

Q53 Which of these is correct about viscosity?
it increases with increase in temperature
it varies with the relative velocity of the surfaces in contact
it is does not vary from one liquid to another
both viscous force and upthrust act upwards

Q54 The molecules of a liquid are held together by what type of forces?
cohesive forces
adhesive forces
viscosity
surface tension forces

Q55 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 ------------
1/2FL
1/2FL'
1/2 F(L-L')
F(L-L')

Q56 A wire of cross-sectional area of $6\times10{-5}m^{2}$ and length 50cm stretches by 0.2mm under a load of 3000N. Calculate the Young’s modulus for the wire
$$8\times{10^{10}}Nm^{-2}$$
$1.25\times10^{11}Nm^{-2}$
$2.5\times10^{11}Nm^{-2}$
$5\times10^{11}Nm^{-2}$

Q57 The mechanism of heat transfer from one point to another through vibration of the molecules of the medium is called -------------
convection
conduction
radiation
diffusion

Q58 One of these is an example of thermal radiation detector
bolometer
thermometer
thermal rod
thermal glass

Q59 One of these is NOT a basic assumption of kinetic theory of ideal gases
a gas consist of a large number of molecules
the attraction between the molecules is negligible
the kinetic energy of the molecules is changing continuously
the gas molecules are in a state of continuous random motion

Q60 Thermal expansion of a solid material depends on the following EXCEPT
the nature of the material making up the solid
the range of the temperature change
the initial dimensions of the solid
average translational motion of constituent atoms of the material

Q61 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}) $
500s
1000s
1500s
3000s

Q62 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 $$6^{o}C?$$
water
ice
It takes the same amount of thermal energy for each one
Each one requires specific latent heat of a vaporization

Q63 The method of mixtures as a means of measuring the amount of heat of a substance depends of the principle of conservation of
momentum
energy
angular momentum
charge

Q64 Which of the following is NOT true?
evaporation occurs at any temperature of a liquid
boiling takes place only at the surface of the liquid
evaporation occurs only at the surface of a liquid
boiling of a liquid takes place at a definite temperature and pressure

Q65 The statement "the specific latent heat of fusion of ice is $3.3\times 10^{5}$J/kg" means
$3.3\times 10^{5}$J of heat energy is required to raise the temperature if ice to melting point
$ 3.3\times 10^{5}$J of heat energy is absorbed to condense water to ice at $0^{o}$C
$ 3.3\times 10^{5}$J of heat energy is required to change 1 kg of pure ice at$ 0^{o}$C to 1kg of water at $0^{o}$C
$ 3.3\times 10^{5}$J of heat energy is required to change any amount of pure melting ice at$ 0^{o}$C to water at the same temperature

Q66 The amount of heat stored in a substance depends on all of the following EXCEPT
mass of the substance
shape of the substance
natureof the substance
change in temperature of the substance

Q67 Which of the following is NOT an effect of heat on a substance?
convection
expansion
temperature change
change of state

Q68 The absolute zero temperature refers to the temperature at which
pure ice, water and water vapour at normal atmospheric pressure are in equilibrium
theoretically all thermal motions will cease
pure ice melts at normal atmospheric pressure
pure ice ecomes steam at atmospheric pressure

Q69 Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin
449.16K
505.15K
60.91K
96.19K

Q70 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 juntions of this kind is known as
resistance thermometer
thermocouple
pyrometer
thermistor

Q71 On what thermometric property does the working of a thermistor depend?
change in pressure with change in temperature
change in volume at constant pressure with change in temperature
change in electrical resistance with change in temperatue
change in presure at constant volume with change in temperature

Q72 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?
66.64mm
43.84mm
219.20mm
34.54mm

Q73 A wall or partition that allows free exchange of heat energy between two systems is referred to as --------------
isothermal
upper fixed point and the Lower fixed point
adiabatic
isobaric

Q74 The fundamental interval of a thermometric scale is
the temperature scale
the difference between the upper and the lower fixed points
above the upper fixed point
below the upper fixed point

Q75 Which of the following is NOT a thermometric property?
the volume of a liquid
the electrical resistance of a conductor
the density of a liquid
the pressure of a gas at constant volume

Q76 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
forward displacement
forward acceleration
recoil velocity
pressure

Q77 A mass accelerates uniformly when the resultant force acting on it
is zero
is constant but not zero
increases uniformly with respect to time
is proportional to the displacement of the mass from a fixed point

Q78 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
zero at T
greatest at P
greatest at T and Q
the same at P as at Q and T

Q79 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?
174.5 cm/s
185.2 cm/s
215.3 cm/s
143.7 cm/s

Q80 The motion of a ball rolling down a ramp is one with
constant speed
increasing acceleration
constant acceleration
decreasing acceleration

Q81 The trajectory of a projectile is
an ellipse
a circle
a parabola
a straight line

Q82 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?
35.8 m/s at 24 degrees
38.6 m/s at 54 degrees
27 m/s at 35 degrees
24 m/s at 44 degrees

Q83 What is common to the variation in the range and the height of a projectile?
horizontal velocity
time of flight vertical velocity, horizontal acceleration
vertical velocity
horizontal acceleration

Q84 A stone thrown from ground level returns to the same level 4 s after. With what speed was the stone thrown? Take $g = 10ms^{-2}$
20 m/s
10 m/s
30 m/s
15 m/s

Q85 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 $g = 10ms^{-2}$
15 m above the top of the building
30 m below the top of the building
15 m below the top of the building
30 m above the building

Q86 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?
50.0 N
28.3 N
38.3 N
39.8 N

Q87 Which of the following contributes to the instability of an object?
low centre of gravity
broad base of the object
low potential energy
high centre of gravity

Q88 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
27.2N and 39.2N
40.5N and 62.5N
30.4N and 53.7N
16.6N and 27.3N

Q89 Which of the following does NOT refer to the terms description of stability of on an object?
unstable equilibrium
stable equilibrium
neutral equilibrium
central equilibrium

Q90 Which of the following physical concepts best explains why passengers in fast moving cars should always fasten their seat-belts?
moment
terminal velocity
inertia
centripetal force

Q91 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
25.0 and 43.3
50.0 and 25.0
100.0 and 43.5
100.0 and 25.0

Q92 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?
Pull the crate with P applied horizontally
Push the crate with P inclined at an angle above the horizontal
Pull the crate with P inclined at an angle above the horizontal
Pull the crate with P inclined an angle below the horizontal

Q93 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?
10
0
20
40

Q94 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 $\vec{B}$
12.6
16.2
14.8
18.4

Q95 Given three vectors $\vec{a} = {-}\vec{i}{-}4\vec{j}+2\vec{k}$, $\vec{b} = 3\vec{i}+2\vec{j}-2\vec{k}$, $\vec{c} = 2\vec{i}{-}3\vec{j}+\vec{k}$, calculate $\vec{a}\cdot(\vec{b}\times\vec{c})$
${-6}$
6
9
${-}9$

Q96 Two forces act on a point object as follows: 100 N at $170^{o}$ and 100N at $50^{o}$. Find the resultant force
110 N at $50^{o}$
110 N at $100^{o}$
100 N at $110^{o}$
100 N at $50^{o}$

Q97 The speed of 90 hm/hr is equal to ------------------ m/s
25
90
150
324

Q98 What are the dimensions of power (time rate of change of expending energy)
$MLT^{-2}$
$ML^2T^{-3}$
$ML^{2}T^{-2}$
$M^{2}L^{2}T^{-3}$

Q99 Which of the following statements is not correct about reference frames?
Laws of physics are invariant (retain the same form) in inertial reference frames
In non-inertial reference frames the motion of objects depend only on the interactions of constituent particles among themselves
Any reference frame moving at constant velocity with respect to an inerial reference frame is also inertial
If the coordinate axes of a reference frame attached to an object remain fixed in space then the object is at rest

Q100 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?
The passenger is in motion relative to the passer-by
The passer-by is stationary relative to the passenger
Both observers are in motion relative to each other
The passer-by is in motion relative to the passenger