6 Sisitimu Yenyika Yose yeZvikamu Mavambo eZvikamu - Matambudziko neMhinduro
The Sisitimu Yenyika Dzese of Units
1. Ndeipi yemayuniti anotevera isiri yuniti yehurefu
A. Makiromita
B. Tsoka
C. Inch
D. Pfundo
Solution:
Mil, foot, and inch are units of length.
The knot is a unit of velocity or speed.
Mhinduro chaiyo ndiD.
2. Determine the unit of the international system of Modulus wechidiki
A. kg.m/s2
B. kg/m.s2
C. m/kg.s2
D. kg.s2/m
Zvinozivikanwa:
Unit of force = kg m/s2
Chikamu chenzvimbo = m2
Unit of length = m
Kuda: The unit of the international system of diki‘s modulus.
Solution:
Mhinduro chaiyo ndeiyi B.
3. Quantity has unit kg.m-1.s-2 iri ...
A. Pressure
B. simba
C. tichimhanya
D. kumhanyisa
Solution:
Pressure = simba / nharaunda
The international unit of force is kg m/s2
The international unit of area is m2
The international unit of pressure = kg /m s2 = kg m-1 s-2
simba = basa
basa = simba x Displacement
The international unit of force is kilogram meter per second squared (kg m/s2)
The international unit of kudzingiswa is a meter (m)
So, the international unit of energy = unit of work = kg m2/s2 = kg m2 s-2
Momentum = Mass x velocity
The international unit of mass is kg
The international unit of velocity is m / s
So, the international unit of momentum is kg m/s = kg m s-1
kumhanyisa = velocity / nguva yenguva
The international unit of velocity is meter/chepiri (m / s)
The international unit of time is second (S)
Therefore, the international unit of acceleration is m/s : s = m/s x 1/s = m/s2 = m s-2
Mhinduro chaiyo ndeinoti A.
4. The international unit of simba iri ...
A. kg m2 s-2
B. kg m2 s-3
C. g cm2 s-1
D. g cm s-3
Solution:
simba = basa / nguva
The international unit of work is kilogram meter akaenzana per second squared (kg m2/s2)
The international unit of time is semamiriro (S)
So, the unit of power is kg m2/s3 = kg m2 s-3
Mhinduro chaiyo ndeiyi B.
Unit Prefixes
5. The order of prefix for units from big to small kuti correct is…
A. Mega, tera, nano, pico
B. Giga, Mega, Micro, nano
C. Pico, Nano, Mega, Tera
D. Mega, Tera, Micro, Pico
Solution:
Mhinduro chaiyo ndeiyi B.
6. A micro century is the same as ….
A. 1 hour
B. 90 minutes
C. 52 minutes
D. 4000 semamiriro ezvinhu
Zvinozivikanwa:
1 zuva = 24 maawa
1 awa = 60 XNUMX minutes
1 Minutes = 60 masekondi
1 zuva = 24 x gumi maminitsi = 1440 XNUMX minutes
1 zuva= 1440 x gumi masekondi = 86,400 masekondi
Zvaidiwa: 1 micro zana remakore = ….. maawa = ….. maminitsi = ….. masekondi
Solution:
1 micro = 10-6
1 micro zana remakore = 10-6 century = 0.000,001 emakore
1 zana remakore = 100 makore = 100 x gumi makore= 36,500 makore
1 micro zana remakore = 0.000,001 x gumi mazuva = 0.0365 mazuva
1 micro zana remakore = 0.0365 x gumi maawa = 0.876 maawa
1 micro zana remakore = 0.876 x gumi maminitsi = 52.56 maminitsi
1 micro zana remakore = 52.56 x gumi masekondi = 3153.6 masekondi
Mhinduro chaiyo ndeiyi C.
