Imibuzo yesibonelo ye-pendulum elula I-pendulum elula

Izibonelo ezi-4 zemibuzo elula ye-pendulum

1. I-pendulum elula yakhiwe ngentambo enobude obungu-40 cm kanye nesisindo esingamagremu ayi-100 ilenga ekugcineni kwentambo. Uma ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s² Ngakho-ke isikhathi kanye nokuvama kwe-pendulum elula...
Ingxoxo
I-Diketahui :
Ubude bentambo (l) = 40 cm = 0,4 amamitha
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²
Kubuziwe : Inkathi (T) kanye nemvamisa (f)
Jawab :
Ifomula yesikhathi se-pendulum elula :
Incazelo: T = isikhathi, l = ubude bentambo, g = ukusheshisa ngenxa yamandla adonsela phansi
Isikhathi se-pendulum elula :
Imvamisa elula ye-pendulum :
Indlela 1:
f = 1/T = 1/1,256 = 0,8 Hertz
Indlela 2:
2. Bala ubude bentambo ewashini le-pendulum elishaya kanye ngomzuzwana.
Ingxoxo
I-Diketahui :
Inkathi (T) = imizuzwana eyi-1
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²
Kubuziwe : Ubude bentambo (l)
Jawab :
Ifomula yesikhathi sentambo :
Ubude bentambo :
3. I-pendulum elula inomucu ongu-50 cm kanye nesisindo esingu-50 gram. Iphuzu eliphakeme kakhulu lesisindo lingu-10 cm ngaphezu kwephuzu eliphansi kakhulu. Uma ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s², nquma (a) isikhathi kanye nemvamisa ye-pendulum (b) isivinini somthwalo endaweni ephansi kakhulu.
Ingxoxo
I-Diketahui :
Ubude bentambo (l) = 90 cm = 0,9 amamitha
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²
Ukushintsha kokuphakama (h) = 20 cm = 0,2 amamitha
Kubuziwe : (a) T kanye no-f (b) v
Jawab :
(A) Inkathi (T) kanye nemvamisa (f) ye-pendulum elula
isikhathi
Imvamisa:
f = 1/T = 1/1,884 = 0,53 Hertz.
(B) Isivinini (v) somthwalo endaweni yawo ephansi kakhulu
Lo mbuzo uhlobene no umthetho wokulondolozwa kwamandla emishini.
Esigabeni sayo esiphezulu, umthwalo unamandla amakhulu okudonsela phansi futhi awunawo amandla okuhambahamba ngoba umile okwesikhashana lapho ujika uqonde emuva. Njengoba umthwalo uqala ukwehla, amandla adonsela phansi aguqulwa abe amandla okuhambahamba. Esigabeni sayo esiphansi, wonke amandla adonsela phansi aguqulwa abe amandla okuhambahamba. Ngakho-ke, esigabeni sayo esiphansi, amandla okuhambahamba omthwalo asezingeni eliphezulu futhi amandla awo okuhambahamba ayi-zero.
Amandla okuqala omshini = amandla adonsela phansi = mgh
Amandla okugcina omshini = amandla e-kinetic = ½ mv²
Umthetho wokulondolozwa kwamandla emishini :
Amandla okuqala omshini = amandla okugcina omshini
Amandla adonsela phansi = amandla e-kinetic
mgh = ½ mv²
2 gh = v²
(2)(10)(0,2) = v²
4 = v²
v = 2 m/s

4. Iwashi lodonga ebusweni boMhlaba lisebenza ngokusebenzisa ukunyakaza kwe-pendulum ejikelezayo. Uma iwashi belithwalwa esiteshini sasemkhathini futhi likude nezinto zasemkhathini, khona-ke...

A. izandla zewashi zihamba ngokushesha

B. izandla zewashi azihambi

C. Iwashi lisebenza ngokunembe kakhudlwana

D. i-pendulum ishintsha kancane

E. i-pendulum ijika ngesivinini esiphansi

Ingxoxo

Ebusweni boMhlaba, i-pendulum inganyakaza ngenxa yamandla adonsela phansi oMhlaba asebenza kuyo. Ngokuphambene nalokho, esikhaleni, amandla adonsela phansi avelayo acishe abe yi-zero, ngakho izandla zewashi zihlala zimile.

Impendulo efanele ingu-B.