4 Izibonelo zemibuzo yesikhathi sokuvama kanye nesesikhathi sokudlidliza
1. Into A idlidliza ngokudlidliza okungu-75 ngomzuzwana, kanti into B idlidliza ngokudlidliza okungu-60 ngomzuzwana. Isilinganiso samaza ento A nento B...
A. 6: 7
B. 5: 4
C. 4: 5
D. 3: 5
Ingxoxo
Imvamisa yinani lokudlidliza okwenzeka ngomzuzwana.
Imvamisa yento A = 75/isekhondi = 75 iHertz
Imvamisa yento B = 60/isekhondi = 60 iHertz
Isilinganiso samaza ento A kanye nento B yilesi:
75: 60
75/15: 60/15
5: 4
Impendulo efanele ingu-B.
2. Inani lokudlidliza ngomzuzwana owodwa libizwa ngokuthi...
A. ubukhulu
Imvamisa ye-B.
Isikhathi C.
Isikhawu se-D.
Ingxoxo
Inani lokudlidliza okwenzeka ngomzuzwana owodwa libizwa ngokuthi imvamisa yokudlidliza, kanti isikhathi esidingekayo ukwenza ukudlidliza okukodwa sibizwa ngokuthi inkathi.
Impendulo efanele ingu-B.
3. Umthombo odlidlizayo ukhiqiza imvamisa engu-20 Hz. Isikhathi sokudlidliza...
A. 20 imizuzwana
B. 2 imizuzwana
C. 0,5 imizuzwana
D. 0,05 imizuzwana
Ingxoxo
Kuyaziwa ukuthi:
Imvamisa (f) = 20 Hertz
Kubuziwe: Isikhathi (T)
Impendulo:
Imvamisa yinani lokudlidliza okwenzeka ngomzuzwana owodwa, kuyilapho isikhathi singumzuzu odingekayo ukwenza ukudlidliza okukodwa.
T = 1/f
I-T = 1/20 Hz
T = 0,05 imizuzwana
Impendulo efanele ngu-D.
4. Uma into idlidliza izikhathi ezingu -600 njalo ngemizuzu emi-5, khona-ke isikhathi sokudlidliza...
A. umzuzwana owodwa
B. imizuzwana emi-2
C. imizuzwana engu-60
D. imizuzwana engu-120
Ingxoxo
Kuyaziwa ukuthi:
Isikhathi (t) = imizuzu emi-5 = imizuzwana emi-5 x engama-60 = imizuzwana engama-300
Inani lokudlidliza = ukudlidliza okungu-600
Umbuzo : Isikhathi sokudlidliza (T)
Impendulo:
Imvamisa (f) yokudlidliza yinani lokudlidliza okwenzeka ngomzuzwana owodwa, kuyilapho isikhathi (T) sokudlidliza kuyisikhathi esidingekayo ukwenza ukudlidliza okukodwa.
Imvamisa yokudlidliza (f) = ukudlidliza okungu-600 / imizuzwana engu-300 = ukudlidliza okungu-2 / isekhondi
Isikhathi sokudlidliza (T) = imizuzwana engama-300 / ukudlidliza okungu-600 = imizuzwana emi-3 / ukudlidliza okungu-6 = isekhondi eli-1 / ukudlidliza okungu-2 = imizuzwana engu-0,5/ukudlidliza
Impendulo efanele ngu-A.
Umthombo wombuzo:
Imibuzo Yokuhlolwa Kazwelonke Yesayensi Yesikole Samabanga Aphansi/Isikole SamaSulumane Samabanga Aphakeme
