Misalai 10 na Tambayoyi Masu Matsi
1. Girman tubalan guda huɗu da ke ƙasa iri ɗaya ne, don haka ƙaramin matsin lamba a ƙasa ana yin shi ne ta hanyar lambar abu...
A. Ni
B. II
C. III
D. IV
Tattaunawa
Tsarin matsi:
P = F / A
Bisa ga wannan dabarar, an kammala da cewa matsin lamba (P) yana daidai gwargwado kai tsaye da ƙarfi (F) kuma yana daidai gwargwado da yankin saman (A). Wannan yana nufin cewa idan ƙarfin ya fi girma, matsin lambar ma ya fi girma, kuma idan yankin saman ya fi girma, matsin lambar ma ya fi ƙanƙanta.
Dangane da hoton, mafi girman yankin saman da ya taɓa bene shine abu na III don haka wannan abu ba ya yin matsin lamba mafi ƙaranci a ƙasa.
Amsar da ta dace ita ce C.
2. Idan nauyin alwatika huɗu da ke ƙasa iri ɗaya ne, mafi girman matsin lamba akan yankin matsi yana nunawa ta hanyar hoton...
Tattaunawa
Tsarin matsi:
P = F / A = w / A
Bayani: P = matsin lamba, F = ƙarfi, w = nauyi , A = yankin saman da ke taɓa ƙasa.
Bisa ga wannan dabarar, za a iya kammala da cewa matsin lamba yana daidai da nauyi kai tsaye kuma yana daidai da yankin saman da ya taɓa bene. Saboda haka, girman nauyi, girman matsin lamba, da kuma ƙaramin yankin saman abu da ya taɓa bene, girman matsin lambar.
Idan nauyin dukkan alwatika huɗu iri ɗaya ne, to ƙarfin nauyi a kan dukkan alwatika huɗu iri ɗaya ne. Saboda haka, matsin lambar ya dogara ne da yankin saman da ke taɓa bene, inda ƙaramin yanki na saman yake da mafi girman matsin lamba.
Amsar da ta dace ita ce B.
3. An nuna mafi girman matsin lamba a cikin hoton...
Tattaunawa
Tsarin matsi:
P = F / A = w / A
Bayani: P = matsin lamba, F = ƙarfi, w = nauyi, A = yankin saman da ke taɓa ƙasa.
Bisa ga wannan dabarar, za a iya kammala da cewa matsin lamba yana daidai da nauyi kai tsaye kuma yana daidai da yankin saman da ya taɓa bene. Saboda haka, girman nauyi, girman matsin lamba, da kuma ƙaramin yankin saman abu da ya taɓa bene, girman matsin lambar.
Idan nauyin dukkan abubuwa huɗu iri ɗaya ne, to ƙarfin nauyi a kan dukkan abubuwa huɗu iri ɗaya ne. Saboda haka, matsin ya dogara ne da yankin saman da ke taɓa bene, inda ƙaramin yanki na saman yake da mafi girman matsin lamba.
Amsar da ta dace ita ce D.
4. Ƙarfin N 500 yana aiki a kan faɗin saman 2,5 m2 . Matsin shine…
A. 20 Pa
B. 200 Pa
C. 2000 Pa
D. 2 Pa
Tattaunawa
An san cewa:
Ƙarfi (F) = Newtons 500
Faɗin saman (A) = murabba'in mita 2,5
An tambaya: Matsi (P)
Amsa:
Matsi (P):
P = F / A
P = 500 / 2,5
P = 200 N/m 2
P = 200 Pascal
Amsar da ta dace ita ce B.
5. Ƙarfin N 500 yana aiki a kan faɗin saman 2,5 m2 . Matsin shine…
A. 20 Pa
B. 200 Pa
C. 2000 Pa
D. 2 Pa
Tattaunawa
An san cewa:
Ƙarfi (F) = Newtons 500
Faɗin saman (A) = murabba'in mita 2,5
An tambaya: Matsi (P)
Amsa:
Matsi (P):
P = F / A
P = 500 / 2,5
P = 200 N/m 2
P = 200 Pascal
Amsar da ta dace ita ce B.
6. Kalli hoton da ke ƙasa! Nauyin akwatin = 75 kg da kuma saurin gudu saboda nauyi g = 10 m/s 2. Matsin da tushen akwatin ke yi shine...
A. 150 N/m2
B. 125 N/m 2
C. 75 N/m 2
D. 25 N/m 2
Tattaunawa
An san cewa:
Nauyin akwati (m) = 75 kg
Saurin gudu saboda nauyi (g) = 10 m/s 2
Nauyi (w) = mg = (75 kg)(10 m/s 2 ) = 750 kg m/s 2 = 750 Newtons
Faɗin saman gindin akwatin (A) = mita 6 x mita 5 = murabba'in mita 30
An tambaya: Matsi da ƙasan akwatin ke yi
Amsa:
Matsi da ke ƙasan akwatin ke yi:
P = F/A = w/A = 750/30 = 25 N/m 2
Amsar da ta dace ita ce D.
7. Akwatin kwali da ke ɗauke da mangwaro yana da nauyin kilogiram 24 kuma an sanya shi a ƙasa kuma girmansa kamar yadda aka nuna a hoton (g = 10 m/s2 ) . Matsin da akwatin kwali ke yi a ƙasa shine….
A. 600 N/m2
B. 1000 N/m 2
C. 1200 N/m 2
D. 2400 N/m 2
Tattaunawa
An san cewa:
Mass (m) = 24 kg
Saurin gudu saboda nauyi (g) = 10 m/s 2
Nauyi (w) = mg = (24 kg)(10 m/s 2 ) = 240 kg m/s 2 = 240 Newtons
Yankin saman da ya shafi bene (A) = 1 m x 0,4 m = 0,4 m 2
Tambaya: Nawa ne matsin lamba da kwali ke yi a ƙasa?
Amsa:
Tsarin matsi:
P = F / A = w / A
Bayanin dabara: P = matsin lamba, F = ƙarfi, w = nauyi, A = yankin saman
Yawan matsin lambar da kwali ke yi a ƙasa:
P = 240 N / 0,4 m 2 = 600 N/m 2
Amsar da ta dace ita ce A.
8. An sanya tubalan guda huɗu masu kama da juna a kan bene ɗaya a matsayin da aka nuna a cikin hoton. Mafi girman matsin lamba da ƙasan ta fuskanta an nuna shi a cikin hoton...
Tattaunawa
Tsarin matsin lamba :
P = F / A = w / A
Bayani: P = matsin lamba, F = ƙarfi, w = nauyi, A = yankin saman.
Bisa ga tsarin matsin lamba, an kammala da cewa matsin lamba yana daidai da ƙarfi kuma yana daidai da yankin saman. Girman ƙarfin, girman matsin lambar. Girman yankin saman, ƙarancin matsin lambar.
Yawan tubalan iri ɗaya ne, don haka nauyinsu iri ɗaya ne. Saboda haka, adadin matsin lamba a cikin matsalar da ke sama ana tantance shi ne ta hanyar yankin saman da ke hulɗa da bene (yankin tushe). Mafi girman matsin lamba da benen ke fuskanta yana faruwa ne ta hanyar toshe mai ƙaramin yanki na tushe.
Faɗin saman tubalan A = (2 cm)(4 cm) = 8 cm2
Faɗin saman tubalan B = (4 cm)(4 cm) = 16 cm2
Faɗin saman tubalan C = (4 cm)(3 cm) = 12 cm2
Faɗin saman cuboid D = (3 cm)(3 cm) = 9 cm2
Amsar da ta dace ita ce A.
9. An sanya tubalan guda huɗu masu nauyin iri ɗaya a ƙasa ɗaya. Tushen da ke yin ƙaramin matsin lamba a ƙasa shine…
Tattaunawa
Yawan tubalan iri ɗaya ne, don haka nauyinsu iri ɗaya ne. Saboda haka, adadin matsin lamba a cikin matsalar da ke sama ana ƙayyade shi ne ta hanyar yankin saman tubalan da ke taɓa bene (yankin tushe). Mafi ƙarancin matsin lamba da benen ke fuskanta yana faruwa ne ta hanyar tubalan da ke da mafi girman yankin tushe.
Faɗin saman tubalan A = (2 cm)(2 cm) = 4 cm2
Faɗin saman tubalan B = (1 cm)(3 cm) = 3 cm2
Faɗin saman tubalan C = (4 cm)(2 cm) = 8 cm2
Faɗin saman cuboid D = (4 cm)(4 cm) = 16 cm2
Amsar da ta dace ita ce D.
10. Kalli hoton da ke ƙasa! Kowanne tubali yana da nauyinsa iri ɗaya. Mafi ƙarancin matsin lamba akan saman matsewa yana kan tubalin…
Tattaunawa
Nauyin tubalan iri ɗaya ne don haka nauyin tubalan iri ɗaya ne. Mafi ƙarancin matsin lamba akan matakin matsewa ana ƙaddara shi ne ta hanyar katakon da ke da mafi girman yankin tushe.
Faɗin saman tubalan A = (4 cm)(2 cm) = 8 cm2
Faɗin saman tubalan B = (3 cm)(2 cm) = 6 cm2
Faɗin saman tubalan C = (4 cm)(1 cm) = 4 cm2
Faɗin saman cuboid D = (2 cm)(2 cm) = 4 cm2
Amsar da ta dace ita ce A.
Tushen tambaya:
Tambayoyin Jarrabawar Ƙasa ta Kimiyya ta Makarantar Sakandare/Makarantar Sakandare ta Musulunci
