Sayansi

Mafunso 7 Bizinesi

1. Yang'anani chithunzi chotsatirachi!

Kuchuluka kwa ntchito yomwe yachitika pa boloko ndi ...

A. 3 Joule

B. 8 Joule

C. 16 Joule

D. 48 Joule

Zokambirana

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Zitsanzo 11 za mafunso oyezera

1. Chida choyezera kutalika ndi...

A. pepala lowerengera ndalama

B. wolamulira

C. wotchi yoyimitsa

D. masikelo

Zokambirana

Kulinganiza = chida choyezera kulemera

Ruler = chida choyezera kutalika

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Zitsanzo 4 za mafunso okhudza ndege yopendekeka ndi SMP

1. Yang'anani chithunzi chotsatirachi!

Trolley yolemera 10 N imakokedwa kuchokera pansi pa ndege yopendekeka mpaka itafika pamwamba pa ndege yopendekeka. Mphamvu ya F yomwe ikufunika ndi…

A. 15,0 N

B. 12,5 N

C. 5,0 N

D. 2,5 N

Zokambirana

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Zitsanzo 15 za kutentha ndi kusintha kwa mkhalidwe

Kukambirana za Mavuto a Kutentha

1. Kuti kutentha kwa madzi a m'nyanja kukweze ndi 1°C, pamafunika ma Joules 3900 a kutentha . Ngati kutentha kwa madzi a m'nyanja ndi 3,9 × 10 ³ J/Kg°C, ndiye kuti kulemera kwa madzi a m'nyanja ndi…

A. 100 kg

B. 10 kg

C. 1 kg

D. 0,1 kg

Zokambirana

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Zitsanzo 8 za mphamvu zomwe zingatheke komanso mphamvu ya kinetic

1. Onani chithunzi chili pansipa!

Chinthu A chili ndi kulemera kwa magalamu 1.500 ndipo chili pamalo omwe akuwonetsedwa pachithunzichi. Patapita kanthawi, chinthucho chimagwa pansi. Mphamvu zomwe zingatheke chinthu chachikulu kwambiri chomwe chili ndi A ndi... (zikudziwika kuti g lapansi = 10 m/s²)

A. 15 Joule

B. 200 Joule

C. 300 Joule

D. 30.000 Joule

Zokambirana

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4 Zitsanzo za mafunso okhudza nthawi yozungulira komanso nthawi yogwedezeka

1. Chinthu A chimagwedezeka ndi ma vibration 75 pa sekondi, ndipo chinthu B chimagwedezeka ndi ma vibration 60 pa sekondi. Chiŵerengero cha ma frequency a chinthu A ndi chinthu B ndi...

A. 6: 7

B. 5: 4

C. 4: 5

D. 3: 5

Zokambirana

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Zitsanzo 10 za Mafunso Okhudza Kupanikizika

1. Kulemera ndi kuchuluka kwa mabuloko anayi omwe ali pansipa ndi ofanana, kotero kupanikizika kochepa kwambiri pansi kumachitika ndi nambala ya chinthu ...

A. Ine

B. II

C. III

D. IV

Zokambirana

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Zitsanzo 5 za Mafunso a Mphamvu ya Magetsi

1. Nyali ya TL imalembedwa kuti 10 W, 220 V. Izi zikutanthauza kuti nyaliyo imafuna...

A. mphamvu 10 J/sekondi ndi mphamvu yamagetsi 0,045 A

B. mphamvu 10 J/sekondi ndi mphamvu yamagetsi 22 A

C. mphamvu 10 J/min ndi mphamvu yamagetsi 0,045 A

D. mphamvu 10 J/mphindi ndi mphamvu yamagetsi 22 A

Zokambirana

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Zitsanzo ziwiri za mafunso okhudza magalasi okulitsa

1. Chinthu chikawonedwa ndi galasi lokulitsa mumlengalenga II, chithunzi chomwe chapezeka chidzawoneka...

A. momveka bwino

B. zosamveka bwino

C. wosawoneka

D. sizikudziwika

Zokambirana

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Chitsanzo cha mafunso a Galvanometer 1

1. Yang'anani chithunzi! Pamene mtengo wakum'mwera walowa mu coil, singano ya galvanometer imapita ku...

A. kumanja kenako kumanzere

B. pomwepo mpaka pa zero

C. kumanzere kenako kumanja

D. kumanzere kenako kufika pa zero

Zokambirana

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