Misalin tambayoyin makamashin motsi

Misalai 3 na tambayoyin makamashin motsi

1. Abubuwa A da B suna da nauyi iri ɗaya kuma kowannensu yana motsawa a gudu kamar yadda aka nuna a hoton da ke ƙasa:
Rabon kuzarin motsi tsakanin abu A da abu B shine...

A. 1: 2
B. 1: 4
C. 2: 1
D. 4: 1

Tattaunawa

Abubuwa A da B suna da nauyi iri ɗaya. Ana nuna nauyin abubuwa A da B da m.
Tsarin makamashin motsi:
EK = ½ mv²
Bayani: EK = kuzarin motsi, m = taro, v = gudu
Makamashin motsi na abu A :
EK_A = ½ mv² = ½ m 2² = ½ m (4) = 2 m
Makamashin motsi na abu B :
EK_B = ½ mv² = ½ m 4² = ½ m (16) = 8 m
Kwatanta kuzarin motsi na abu A da abu B:
EK_A : EK_B
mita 2: mita 8
2: 8
1: 4
Amsar da ta dace ita ce B.

2. Kalli hoton bas da mota suna tafiya a ƙasa!
Nauyin motar bas ɗin shine kilogiram 10.000 kuma nauyin motar shine kilogiram 500, don haka rabon kuzarin motsi na motar da kuzarin motsi na motar shine…

A. 2: 1
B. 4: 1
C. 5: 1
D. 20: 1

Tattaunawa
Makamashin motsi na bas:
EK = ½ mv² = ½ (10.000)(10)² = (5000)(100) = 500.000
Makamashin motsi na mota:
EK = ½ mv² = ½ (500)(20)² = (250)(400) = 100.000
Kwatanta kuzarin motsi na bas da kuzarin motsi na motar shine:
500.000: 100.000
5: 1
Amsar da ta dace ita ce C.

3. Kalli hoton!
Mota tana tafiya a gudu daban-daban daga A zuwa B. Rabon kuzarin motsi da motar ke da shi a wuri A da kuma wuri B shine…
A. 1: 2
B. 1: 4
C. 2: 1
D. 4: 1
Tattaunawa
Makamashin motsi na motar a aya ta A:
EK = ½ mv² = ½ m (10)² = ½ m (100) = 50 m
Makamashin motsi na motar a batu na B:
EK = ½ mv² = ½ m (20)² = ½ m (400) = 200 m
Kwatanta kuzarin motsi na motar a maki A da kuma maki B shine:
mita 50: mita 200
50: 200
1: 4
Amsar da ta dace ita ce B.

Tushen tambaya:

Tambayoyin Jarrabawar Ƙasa ta Kimiyya ta Makarantar Sakandare/Makarantar Sakandare ta Musulunci