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Worksheets

Mechanical Fluctuations Quiz

Total questions: 157

Worksheet time: 2hrs 19mins

Name
Class
Date
1.

In what the main difference of fluctuations from other kinds of movement consists?

a)

differences are not present

b)

at fluctuations body movement repeats

c)

speed and body acceleration at fluctuations change

d)

the force operating on a body, is directed to balance position

2.

What from these movements fluctuation is called?

a)

car movement

b)

hand movement

c)

water movement in small river

d)

movement any

3.

How the deviation of a body from balance position is called?

a)

speed

b)

amplitude

c)

moving

d)

acceleration

4.

That name amplitude of fluctuations?

a)

the greatest deviation of a body from balance position

b)

a deviation of a body from balance position

c)

distance between two extreme points of a trajectory

d)

length of a trajectory between two extreme points

5.

That name the period of fluctuations?

a)

duration of half one full waves

b)

time, for which body reaches an extreme point of a trajectory

c)

duration of one full wave

d)

time, for which body passes from one extreme point in another

6.

How the quantity of fluctuations for a time unit is called?

a)

speed

b)

the period

c)

amplitude

d)

frequency

7.

What the period of fluctuation of heart of the person is equal?

a)

0,65 with

b)

0,78 with

c)

0,84 with

d)

0,98 with

8.

As the quantity heart for a minute is called?

a)

pulse

b)

pressure

c)

the period

d)

speed

9.

That represents the schedule of harmonious fluctuations?

a)

a hyperbole

b)

a parabola

c)

a straight line which is parallel to time axis

d)

a sinusoid or kosinusoid

10.

Show the formula of the period of fluctuation by definition.

a)

ν =

b)

Т =

c)
d)
11.

Specify the formula of frequency of fluctuation by definition.

a)

ν =

b)

Т =

c)
d)
12.

Show the equation of harmonious fluctuations.

4 lines
13.

Specify the equation of free fluctuations.

4 lines
14.

How fluctuations which occur for the account are called Internal energy of system?

a)

the compelled

b)

the pulse

c)

the free

d)

the harmonious

15.

The Equation of harmonious fluctuations looks like: To that is the amplitude of fluctuation equal?

a)

200

b)

0,03

c)
d)

100

16.

The Equation of harmonious fluctuations looks like: With what angular frequency the system fluctuates?

a)

200

b)

0,03

c)
d)

100

17.

The Equation of harmonious fluctuations looks like: To that is the initial phase of fluctuation equal?

a)

200

b)

0,03

c)
d)

100

18.

As fluctuations which occur under the influence of the periodic are called the compelled forces?

a)

the compelled

b)

the pulse

c)

the free

d)

the harmonious

19.

Specify differential the equation of harmonious fluctuations.

4 lines
20.

Specify differential the equation of free fluctuations.

4 lines
21.

Specify differential the equation of the compelled fluctuations.

4 lines
22.

As the size in the equation of harmonious fluctuation is called?

a)

an initial phase

b)

a variable phase

c)

circular frequency

d)

moving

23.

As the size in the equation of harmonious fluctuation is called?

a)

an initial phase

b)

a variable phase

c)

circular frequency

d)

moving

24.

As the size in the equation of harmonious fluctuation is called?

a)

an initial phase

b)

a variable phase

c)

circular frequency

d)

moving

25.

In the equation of harmonious fluctuation function the sine shows that fluctuations ...

a)

the fading

b)

the pulse

c)

relacsation

d)

the harmonious

26.

That the size in the equation of harmonious fluctuation means?

a)

speed

b)

acceleration

c)

circular frequency

d)

moving

27.

That the size in differential means the equation harmonious fluctuation?

a)

speed

b)

acceleration

c)

circular frequency

d)

moving

28.

That the size in differential means the equation harmonious fluctuation?

a)

speed

b)

acceleration

c)

circular frequency

d)

moving

29.

The size is equal in the differential to what expression the equation of harmonious fluctuation?

4 lines
30.

That the size in differential means the equation free fluctuations?

a)

decrement of attenuation

b)

logarithmic decrement of attenuation

c)

attenuation factor

d)

moving

31.

The size is equal in the differential to what expression the equation of free fluctuation?

4 lines
32.

What size in differential the equation of the free fluctuations will show speed of attenuation fluctuations?

4 lines
33.

What size in differential the equation of the free Speed will show fluctuations fluctuating system?

4 lines
34.

What size in differential the equation of the free Acceleration will show fluctuations fluctuating system?

4 lines
35.

Specify the formula of decrement of attenuation of fluctuation.

a)
b)

λ =

c)

S =

d)
36.

Specify the formula of logarithmic decrement of attenuation fluctuations.

a)
b)

λ =

c)

S =

d)
37.

The Differential equation of harmonious fluctuations looks like: To find circular frequency of fluctuations.

a)

16

b)

8

c)

4

d)

2

38.

The Differential equation of the compelled fluctuations looks like: To find factor of attenuations.

a)

16

b)

8

c)

4

d)

2

39.

The Differential equation of the compelled fluctuations looks like: To find circular frequency of fluctuations.

a)

16

b)

8

c)

4

d)

2

40.

Speed of fluctuating system is equal to what expression?

4 lines
41.

Acceleration of fluctuating system is equal to what expression?

4 lines
42.

As the quantity of fluctuations for unit time is called?

a)

linear frequency

b)

circular frequency

c)

the period

d)

attenuation factor

43.

As the quantity of fluctuations for 6,28 seconds is called?

a)

linear frequency

b)

circular frequency

c)

the period

d)

attenuation factor

44.

Fluctuations by the physical nature happen with What?

a)

periodic and acyclic

b)

free and compelled

c)

mechanical and electromagnetic

d)

fading and not fading

45.

That represents the schedule of harmonious fluctuations?

a)

a sinusoid or kosinusoid

b)

a parabola

c)

a straight line which is parallel to time axis

d)

a hyperbole

46.

Specify the equation of harmonious fluctuations.

a)

x = 0 + at^2/2

b)

х = Аsin (ωt + φ0)

c)

x = t

d)

x = AE - βt sin (ωt + φ0)

47.

Specify the equation of fading fluctuations.

a)

х = Аsin (ωt + φ0)

b)

x = 0 + at^2/2

c)

x = t

d)

x = AE - βt sin (ωt + φ0)

48.

For what fluctuations the resonance phenomenon is observed?

a)

harmonious

b)

free

c)

fading

d)

the compelled

49.

The Equation of harmonious fluctuations looks like: х = 0,1sint. To find an initial phase of fluctuations.

a)

0,1

b)

3,14

c)

0

d)

1

50.

Specify the equation of a flat harmonious wave.

a)

х = Аsin (ωt + φ0)

b)

x = - at^2/2

c)

x = Аsin (ωt - kS)

d)

x = AE - βt sin (ωt + φ0)

51.

As the size k in the wave equation is called: х = Asin (ωt - ks)?

a)

it has no name

b)

wave number

c)

length of a wave

d)

circular frequency

52.

What expression name wave number?

a)

2 πλ

b)

λ/2 π

c)

λν

d)

2 π / λ

53.

As the distance which there takes place a wave during fluctuation is called?

a)

a way

b)

wave number

c)

it has no name

d)

length of a wave

54.

As the distance between two nearest particles of environment, in which is called made fluctuations occur in an identical phase?

a)

length of a wave

b)

wave number

c)

it has no name

d)

a way

55.

As the size equal to the relation of energy of a wave to the area of a surface is called, Through which it passes and up the time of its passage?

a)

an energy stream

b)

intensity

c)

volume density of energy

d)

energy density

56.

Specify an intensity unit of measure in SI.

a)

Erg/sec

b)

Vt

c)

Erg/sm^2

d)

Vt/m^2

57.

What errors depend on sense organs of the person and the device?

a)

casual

b)

regular

c)

the rough

d)

regular and rough

58.

Specify record of definitive result of measurement, cylinder volume

4 lines
59.

Specify the formula of a confidential interval

4 lines
60.

Specify the formula of average square-law errors of an average arithmetic for direct measurement- h

4 lines
61.

Specify the formula of an absolute error of direct measurement of diameter - D

4 lines
62.

As the factor of Student is defined?

a)

from the table, knowing confidential probability () and measurement number (n)

b)

from the table, knowing an average square-law error

c)

from the special table, knowing an average arithmetic

d)

from the table, knowing measurement number

63.

Specify the formula of a relative error, indirect measurement of volume-V

a)

E=SVtp:n√n

b)

E=∆Vsr/Vsr∙100%

c)

∆Vi=|Vsr−Vi|

64.

To Specify, what errors are removable

a)

casual, regular and rough

b)

errors cannot be eliminated

c)

gross blunders

d)

all errors are removable only are removable

65.

As it is possible to reduce casual errors

a)

it it is impossible

b)

to spend measurement very attentively

c)

by repeated measurement and calculation of an average arithmetic

d)

by an estimation of a confidential interval

66.

As it is possible to supervise random errors

a)

to spend repeatedly measurements and to find average arithmetic value

b)

it is necessary to find a confidential interval

c)

it is necessary to estimate factor of Student

d)

It is necessary to spend measurement repeatedly

67.

That such direct measurement?

a)

measurement at which the measured size find through other sizes

b)

measurement at which the measured size find with help formulas

c)

measurement at which the measured size find by means of mathematical calculations

d)

measurement at which the measured size find directly by comparison with the standard accepted for unit, by means of the device

68.

That such indirect measurement?

a)

measurement at which the measured size find through other sizes connected with it

b)

measurement at which the measured size find directly by comparison with the standard accepted for unit, by means of the device

c)

measurement at which the measured size find by means of physical devices

d)

measurement at which the measured size find by means of chemical devices

69.

That such rough (misses) of an error?

a)

errors which are present at everyone measurement

b)

errors which are supposed because of the experimenter

c)

errors which depend on a class of accuracy of the device

d)

errors which are supposed casually

70.

That such regular errors?

a)

errors which are supposed casually

b)

errors which are supposed because of the experimenter

c)

errors which depend on a class of accuracy of the device

d)

errors which are present at everyone measurement

71.

That such tool errors?

a)

errors which depend on a class of accuracy of the device

b)

errors which are present at everyone measurement

c)

errors which are supposed because of the experimenter

d)

errors which are supposed casually

72.

That such random errors?

a)

errors which depend on a class of accuracy of the device

b)

errors which are supposed casually

c)

errors which are supposed because of the experimenter

d)

errors which are present at everyone measurement

73.

Specify the formula of average arithmetic value.

a)

=∑xi/n

b)

=∑xi/n

c)

=∑nxi/n

d)

=1/n∑xi/n

74.

Specify the formula of an absolute error.

a)

∆x=|xsr−xi|

b)

σ=√D2

c)

E=∆Xsr/Xsr100%

d)

∆x=xsr−xi

75.

Specify the formula of a relative error.

a)

E=Xsr∆Xsr∙100%

b)

E=∆XsrXsr∙100%

c)

E=|xsr+xi|

d)

E=|xsr−xi|

76.

Measurements happen with What?

a)

the direct

b)

direct and indirect

c)

the indirect

d)

only the direct

77.

As measurements at which required size find are called Directly by means of the device?

a)

the direct

b)

direct and indirect

c)

the indirect

d)

only the indirect

78.

As errors which are supposed on fault are called The experimenter?

a)

the casual

b)

the rough

c)

the regular

d)

the tool

79.

As errors which are present at everyone measurement are called?

a)

the casual

b)

the rough

c)

the regular

d)

the tool

80.

With what error measures the measuring device metre?

a)

0,5 mm

b)

5 mm

c)

0,1 mm

d)

0,01 mm

81.

With what error measures the measuring device a student's ruler?

a)

0,5 mm

b)

5 mm

c)

0,1 mm

d)

0,01mm

82.

With what error measures the measuring device штангециркуль?

a)

0,5 mm

b)

5 mm

c)

0,1 mm

d)

0,01mm

83.

With what error measures the measuring device a micrometer?

a)

0,5 mm

b)

5 mm

c)

0,1 mm

d)

0,01mm

84.

What errors are removable at repeated measurements?

a)

all

b)

rough and regular

c)

casual and rough

d)

regular and casual

85.

Specify record of definitive result of measurement of temperature t.

a)

tист=тср±Sт

b)

tист=тср±∆t

c)

тср=тср±√n

d)

tист=тср±E

86.

Specify the reasons of casual errors.

a)

a carelessness

b)

a curve arrow of the device

c)

devices and sense organs

d)

rough measurement

87.

As the factor of Student is defined?

a)

from the table, knowing confidential probability () and measurement number (n)

b)

from the table, knowing an average square-law error

c)

from the special table, knowing an average arithmetic

d)

from the table, knowing measurement number

88.

Show the formula an average-quadratic error for indirect measurement.

a)

∆x=|xsr−xi|

b)

∆Xsr/Xsr∙100%

c)

√∑∆xi2n

d)

√∑∆xi2n−1

89.

Specify an estimation of an error of measurement by a method of differential of function

a)

at first to differentiate, then to take the logarithm

b)

to find a function limit

c)

to find a function derivative

d)

at first to take the logarithm, then to differentiate

90.

Specify, what of these sizes enters into the formula of a confidential interval At measurement of volume of the cylinder, where p - a confidential interval, n – number measurements, SV - average square-law errors.

a)

SV, n, tpn

b)

tpn, SV

c)

P, ΔV, n

d)

SV, Vsr, p

91.

Show the formula of a confidential interval for cylinder volume.

a)

∆V=SVtp:n√n

b)

∆Vi=|Vsr−Vi|

c)

Vsr∆Vsr∙100%

d)

σ=√D2

92.

The Weight is physical size which characterises:

a)

gravity and weight

b)

gravitation and volume

c)

viscous properties of bodies

d)

inertness and gravitation

93.

The Gravitational constant and its unit of measure:

4 lines
94.

What property of bodies is kept by inertia?

a)

viscosity

b)

volume

c)

rest and uniform movement

d)

acceleration

95.

What property of bodies is characterised by weight?

a)

inertness and gravitation

b)

viscosity

c)

gravity and weight

d)

inertness and elasticity

96.

Specify the formula of dependence of weight from weight:

4 lines
97.

Specify the formula of density of a body by definition.

4 lines
98.

Specify the formula of dependence of weight of a body from its speed.

4 lines
99.

Specify a unit of measure of density of bodies in SI.

4 lines
100.

At condensation warmth:

a)

decreases

b)

abcorbtion

c)

it is allocated

d)

no change

101.

Specify a unit of measure of the maximum humidity.

a)

mol

b)

Pa·s

c)

%

102.

Specify the formula of warmth of steam formation.

4 lines
103.

Specify the formula of Reno.

4 lines
104.

The hygrometer measures kondensatsion:

a)

absolute humidity

b)

the maximum humidity

c)

atmospheric pressure

d)

quantity of sated steams

105.

As the temperature changes at evaporation?

a)

no change

b)

increases

c)

decreases

d)

t=1000C

106.

Specify the reason of humidity of air

a)

sated steams

b)

non-saturated steams

c)

ozone

d)

temperature

107.

Under the indication of the dry thermometer pcikhrometr from the table find ...

a)

concentration of ozone in air

b)

relative humidity

c)

the maximum humidity

d)

absolute humidity

108.

As the weight of water steams in grammes in 1m3 air is called?

a)

concentration of ozone

b)

absolute humidity

c)

the maximum humidity

d)

relative humidity

109.

Specify the formula of relative humidity.

4 lines
110.

As the maintenance of water steams in air is called?

a)

concentration of ozone

b)

concentration of inert gases

c)

concentration of oxygen

d)

humidity of air

111.

As the weight of sated water steams in grammes in 1m3 is called Air?

a)

concentration of ozone

b)

absolute humidity

c)

the maximum humidity

112.

What humidity will show degree of saturation of air the water in steams?

a)

absolute and relative

b)

the relative

c)

maximum

d)

the absolute

113.

Speed of evaporation of sweat depends On what humidity from a surface Skin?

a)

absolute and relative

b)

the absolute

c)

relative

d)

the maximum

114.

Speed of evaporation of sweat depends On what humidity from a surface Alveoluses of lungs?

a)

absolute and maximum

b)

the absolute

c)

relative

d)

the maximum

115.

To That normal relative humidity of air for human body ability to live is equal?

a)

70 - 90 %

b)

30 - 70 %

c)

50 - 70 %

d)

60 - 70 %

116.

What humidity the device measures a hair hygrometer?

a)

relative

b)

the absolute

c)

maximum

d)

quantity of sated steams

117.

What humidity is measured by the device pcikhrometrs August?

a)

any

b)

the absolute

c)

maximum

d)

the relative

118.

On what value coefficient of pcikhrometrs k in the formula depends?

a)

from air temperature

b)

from humidity of air

c)

from speed of a wind

d)

from weight of air

119.

What the device measures a point dew?

a)

pcikhrometrs August

b)

areometr

c)

a hair hygrometer

d)

condensation hygrometer

120.

In what substances there is no force of a friction of rest?

a)

in firm

b)

in liquid

c)

in all substances

d)

such substances are not present

121.

As the pressure of a liquid caused by gravity is called?

a)

static

b)

dynamic

c)

the full

d)

the hydrostatic

122.

In what place of cross-section section of a vessel speed of blood the greatest?

a)

in the centre

b)

about walls

c)

it everywhere is identical

d)

it depends on diameter of a vessel

123.

As the factor η in Newton's formula for internal is called liquid friction η?

a)

relative viscosity

b)

it has no friction factor names

c)

viscosity

124.

As speed of a current of a liquid in a pipe of variable section changes?

a)

it everywhere is constant

b)

there where the section is less, speed is less

c)

THERE where the section is more, speed is more

d)

there where the section is more, speed is less

125.

What liquids name Newton's?

a)

the liquids which viscosity depends on a gradient of speed

b)

the liquids which viscosity depends only on pressure

c)

the liquids which viscosity depends only on temperature

d)

the liquids which viscosity depends on temperature and pressure

126.

Relative viscosity of a liquid is measured In what units?

a)

puas

b)

the Pass

c)

this size dimensionless

d)

N/m·s

127.

What physical sense has composed ρυ2/2 in the equation of Bernulli Р + ρυ2/2 + ρ gh=const?

a)

static pressure

b)

hydrostatic pressure

c)

aerodynamic pressure

d)

dynamic pressure

128.

Viscosity of a liquid at heating ...

a)

increases

b)

decreases

c)

does not change

d)

does not depend from temperatures

129.

As speed of a laminar current of a liquid depends on pipe radius?

a)

in inverse proportion to a square of radius of a pipe

b)

directly to proportionally radius of a pipe

c)

in direct ratio to a square Pipe radius

d)

in inverse proportion to pipe radius

130.

At what current the weight of the liquid proceeding through any section, will be The identical?

a)

at any current

b)

at a stationary current

c)

at Turbulent a current

d)

at turbulent and stationary

131.

What size in Newton's formula for viscous liquid F = ηS d υ/dz Is called as a gradient:

a)

η

b)

S

c)

d υ/dz

d)

ηS

132.

Show the formula of Gagen-Puazejl for a laminar current of a liquid

a)
b)
c)
d)

F = ηS d υ/dz

133.

Liquids name substance, which...

a)

do not keep neither the form, nor volume

b)

keep the form and volume

c)

do not take the form of a vessel in which they are

d)

do not keep the form, but keep volume

134.

In the equation of Bernulli Р + ρυ2/2 + ρ gh = const P - it ...

a)

dynamic pressure

b)

hydrostatic pressure

c)

static pressure

d)

aerodynamic pressure

135.

Specify the formula of hydrostatic pressure.

a)

р = ρgh

b)

р = ρυ2/2

c)

р = ρυ2/2 + ρgh

d)

p = F/S

136.

The viscosity factor is measured In what units in SI?

a)

Nanometer/sec

b)

Puaz

c)

the Pass

d)

n/m

137.

Specify the formula of dynamic pressure.

a)

р = ρgh

b)

р = ρυ2/2

c)

р = ρυ2/2 + ρgh

d)

p = F/S

138.

Show the equation of a condition of indissolubility of a stream of a liquid.

a)

υ1S1 = υ2S2

b)

pV = const

c)

p = ρgh

d)

p + ρυ2/2 + ρgh = const

139.

Show the equation of Bernulli.

a)

υ1S1 = υ2S2

b)

р1V1 = p2V2

c)

p = ρgh

d)

p + ρυ2/2 + ρgh = const

140.

Show Newton's formula, for an internal friction of a liquid.

a)

υ1S1 = υ2S2

b)

р = ρυ2/2

c)

η

d)

p = F/S

141.

Show the formula of relative viscosity.

a)

η = η/ηвода

b)

р1V1 = p2V2

c)

p = ρgh

d)

퐹= η푑휗/푑푥S

142.

What viscosity of blood of the person is equal in norm?

a)

2-3

b)

6-8

c)

4-6

d)

10-12

143.

What liquids name non-newtons?

a)

the liquids which viscosity depends on a gradient of speed

b)

the liquids which viscosity depends only on pressure

c)

the liquids which viscosity depends only on temperature

d)

the liquids which viscosity depends on temperature and a current mode

144.

Show the formula Reynolds's number.

a)

υ1S1 = υ2S2

b)

푅푒=휌휗퐷/η

c)

퐹= η푑휗/푑푥S

d)

p = F/S

145.

What Reynolds's equally critical number?

a)

1300

b)

2000

c)

2300

d)

3300

146.

Show the formula of a gradient of speed.

a)

υ1S1 = υ2S2

b)

푅푒=휌휗퐷/η

c)

푑휗/푑푥

d)

p + ρυ2/2 + ρgh = const

147.

What viscosimetr measure relative viscosity of blood in clinics?

a)

capillary

b)

rotational

c)

viscosimetr Gess

d)

viscosimetr Ostvald

148.

That size D in the formula means Reynolds's number?

a)

viscosity

b)

diameter

c)

density

d)

speed

149.

What the size in the formula means Reynolds's number?

a)

viscosity

b)

diameter

c)

density

d)

speed

150.

That the size in the formula means Reynolds's number?

a)

viscosity

b)

diameter

c)

density

d)

speed

151.

What the size in the formula means Reynolds's number?

a)

viscosity

b)

diameter

c)

density

d)

speed

152.

As expression in Newton's formula for internal is called Liquid friction η?

a)

friction factor

b)

relative viscosity

c)

a gradient of speed

d)

viscosity

153.

As is called S in Newton's formula for an internal friction Liquids η?

a)

friction factor

b)

the area

c)

a gradient of speed

d)

viscosity

154.

What the size in the formula of Puazeil means?

a)

viscosity

b)

length

c)

density

d)

speed

155.

What the size η in the formula of Puazeil means?

a)

viscosity

b)

length

c)

density

d)

speed

156.

What size R in the formula of Puazejl means?

a)

viscosity

b)

length

c)

density

d)

radius

157.

What means in the formula of Puazejl?

a)

viscosity

b)

length

c)

pressure

d)

radius

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