Ihe atụ 9 nke ajụjụ njupụta
1. Olu ihe dị sentimita asatọ n'obosara na sentimita atọ n'obosara , ibu ya dịkwa kilogram iri asatọ na anọ, ya mere njupụta ya dị...
A. 10,5 gr/cm 3
B. 8,5 gr/cm 3
C. 6,4 gr/cm 3
D. 4,8 gr/cm 3
Mkparịta ụka
A maara na:
Olu (V) = 8 cm 3
Ibu (m) = gram 84
A jụrụ: Njupụta ( ρ )
Azịza:
Usoro njupụta :
ρ = m / V = gram 84 / 8 cm 3 = gram 10,5/cm 3
Azịza ziri ezi bụ A.
2. Kube osisi nwere olu nke 5 cm 3. Ọ bụrụ na njupụta osisi bụ 250 g/cm 3 , mgbe ahụ oke osisi ahụ bụ…
A. 1250 g
B.50 g
C. 10 g
D. 2 g
Mkparịta ụka
A maara na:
Olu osisi (V) = 5 cm 3
Njupụta osisi ( ρ ) = 250 g/cm 3
A jụrụ: Oke osisi
Azịza:
Usoro njupụta:
ρ = m / V
Nkọwa: ρ = njupụta, V = olu, m = oke
Oke osisi:
m = ρ V = (250 g/cm 3 )(5 cm 3 ) = gram 1250
3. Lee foto dị n'akụkụ!
Ọ bụrụ na olu mmiri ahụ bụ 35 cm 3 na ibu nke ihe ahụ = gram 60, mgbe ahụ njupụta nke ihe ahụ bụ...
A. 2,40 g/cm
B. 1,71 g/cm 3
C. 1.00 g/cm 3
D. 0,63 g/cm 3
Mkparịta ụka
A maara na:
Olu mmiri (V) = 35 cm 3
Ibu ihe (m) = gram 60
A jụrụ: Njupụta nke ihe ahụ ( ρ )
Azịza:
Njupụta:
ρ = m / V = 60/35 = 1,71 grams/cm 3
Azịza ziri ezi bụ B.
4. Aluminom ígwè nwere ibu nke gram 120 na olu nke 60 cm 3 , yabụ njupụta ya dị...
A. 2 gr/cm 3
B. 20 gr/cm 3
C. 200 gr/cm 3
D. 2.000 gr/cm 3
Mkparịta ụka
A maara na:
Ibu (m) = gram 120
Olu (V) = 60 cm 3
A jụrụ: Njupụta
Azịza:
Usoro njupụta:
ρ = m / V
ρ = gram 120 / 60 cm 3
ρ = gram 2/cm 3
Azịza ziri ezi bụ A.
5. Ụmụ akwụkwọ anọ tụrụ ihe, a na-egosi nsonaazụ nke nnwale ahụ na tebụl na-esonụ:
Ụmụ akwụkwọ ndị na-atụ ihe n'otu ihe atụ bụ…
A. Ụmụ akwụkwọ A na B
B. Ụmụ akwụkwọ B na C
C. Ụmụ akwụkwọ B na D
D. Ụmụ akwụkwọ C na D
Mkparịta ụka
Ihe e ji otu ihe mee nwere otu njupụta ma ọ bụ oke ibu. N'aka nke ọzọ, ihe e ji ihe dị iche iche mee nwere oke ibu dị iche iche.
Usoro maka njupụta bụ:
ρ = m / V
Nkọwa: ρ = njupụta, m = oke, V = olu
Azịza ziri ezi bụ B.
6. Lee eserese nha site na iji ihe na ngwaọrụ ndị a! Ọ bụrụ na ibu ihe dị gram 300, mgbe ahụ njupụta nke ihe ahụ bụ...
A. 3,0 g/cm3
B. 7,5 g/cm 3
C. 15 g/cm 3
D. 320 g/cm 3
Mkparịta ụka
A maara na:
Ibu ihe (m) = gram 300
Olu nke ihe (V) = olu nke mmiri a wụfuru = 20 cm 3
A jụrụ: Njupụta nke ihe ahụ
Azịza:
Usoro njupụta:
ρ = m / V = gram 300 / 20 cm 3 = gram 15/cm 3
Azịza ziri ezi bụ C.
7. Lee foto ahụ!
Ọ bụrụ na etinye ihe nwere ibu nke gram 316 n'ime ite mmiri jupụtara na mmiri dịka egosiri na foto a, mgbe ahụ njupụta nke ihe ahụ bụ...
A. 7,9 kg/m3
B. 15,8 kg/ m3
C. 7.900 kg/ m3
D. 15.800 kg/ m3
Mkparịta ụka
A maara na:
Ibu ihe (m) = gram 316
Olu nke ihe (V) = olu nke mmiri a wụfuru = 40 mililita
A jụrụ: Njupụta nke ihe ahụ
Azịza:
Tupu ị gbakọọ njupụta, buru ụzọ gbanwee nkeji nke oke na olu nke ihe ahụ.
Ibu ihe = gram 316 = gram 316/1000 = 0,316 kg
Olu nke ihe = 40 mililita = 40/1000 lita = 4/100 lita = 0,04 lita
1 lita = 1 kubik decimeter (dm 3 ) = 1/1000 kubik mita (m 3 ) = 0,001 m 3
0,04 lita = (0,04)(0,001) m 3 = 0,00004 m 3
Njupụta nke ihe ahụ:
ρ = m / V = 0,316 n'arọ / 0,00004 m 3 = 316 n'arọ / 0,04 m 3 = 7900 kg/m 3
Azịza ziri ezi bụ C.
8. Lee onyonyo nha a!
Njupụta nke nkume ahụ dịka data dị na onyonyo (Foto 1) na (Foto 2) si dị.
A. 6.000 kg/ m3
B. 4.000 kg/ m3
C. 2.400 kg/ m3
D. 670 kg/ m3
Mkparịta ụka
A maara na:
Dee ngalaba niile dị na Sistemụ Mba Nile
Oke nkume (m) = gram 100 + gram 20 = gram 120 = kilogram 120 / 1000 = kilogram 0,120
Olu nkume (V) = olu mmiri a gbapụrụ agbahapụ = mililita 80 – mililita 60 = mililita 20 = lita 20 / 1000 = lita 2/100 = lita 0,02
1 lita = 1 kubik decimeter (dm 3 ) = 1/1000 kubik mita (m 3 ) = 0,001 m 3
0,02 lita = 0,02 x 0,001 m 3 = 0,00002 m 3
A jụrụ: Njupụta nke nkume ahụ
Azịza:
Njupụta nke nkume:
ρ = m / V = 0,120 n'arọ / 0,00002 m 3 = 120 n'arọ / 0,02 m 3 = 6000 kg/m 3
Azịza ziri ezi bụ A.
9. Onye nkuzi ya nyere Susi, nwa akwụkwọ klas nke asaa ọrụ ịchọpụta ụdị ihe ahụ. M. Susi ji ngwaọrụ egosiri na foto a tụọ oke na olu nke ihe ahụ.
Dabere na nsonaazụ nke nha ihe na njupụta dị na tebụl ahụ, ụdị ihe a na-atụ bụ...
A. Aluminom
B. Zinc
C. Ígwè
D. Kuningan
Mkparịta ụka
A na-egosipụta nkeji niile na Sistemụ Mba Nile
A maara na:
Ibu ihe M (m) = gram 168 = kilogram 168/1000 = kilogram 0,168
Olu nke ihe M (V) = olu mmiri a gbapụrụ agbahapụ = 80 ml – 60 ml = 20 mililita = 20/1000 lita = 2/100 lita = 0,02 lita
1 lita = 1 kubik decimeter (dm 3 ) = 1/1000 kubik mita (m 3 ) = 0,001 m 3
0,02 lita = 0,02 x 0,001 m 3 = 0,00002 m 3
A jụrụ: Njupụta nke ihe ahụ
Azịza:
Njupụta nke ihe bụ:
ρ = m / V = 0,168 n'arọ / 0,00002 m 3 = 168 n'arọ / 0,02 m 3 = 8400 kg/m 3
Dabere na tebụl njupụta, ihe nwere njupụta nke 8400 kg/m3 bụ ọla kọpa.
Azịza ziri ezi bụ D.
Isi mmalite ajụjụ:
Ajụjụ Ule Sayensị Mba nke Ụlọ Akwụkwọ Sekọndrị/Islamic Junior High School Sayensị
