Gwajin dokar Hooke

Umarnin Gwaji na Dokar Hooke

Manufofin gwajin:

- Binciken alaƙar da ke tsakanin ƙarfi da ƙaruwar tsawon bazara
– Ƙayyade ma'aunin bazara

Kayan aiki da kayan aiki: Bazara, nauyin gram 50 (4), tripod, mai mulki

Ka'idar asali:

Dokar Hooke ya bayyana cewa girman ƙarfin yana daidai da ƙaruwar tsawon bazara. Girman ƙarfin da ke aiki a kan bazara, haka nan ƙaruwar tsawon bazara ke ƙaruwa. Rabon girman ƙarfin da ƙaruwar tsawon bazara yana dawwama. Dokar Hooke tana aiki ne lokacin da ƙarfin bai wuce iyakar robar bazara ba. Robert Hooke (1635-1703) ne ya gabatar da dokar Hooke.

A lissafi, ana bayyana dokar Hooke ta hanyar lissafi: k = F / Δl. Inda: k = madaidaitan bazara, F = ƙarfi, Δl = ƙaruwa a tsawon bazara.

Nau'in ƙarfi na duniya shine Newton, naúrar tsayi ta duniya shine mita, saboda haka naúrar ƙasa da ƙasa ta ma'aunin bazara shine Newton/mita (N/m).

Matakan Gwaji:

1. Haɗa tripod ɗin kamar yadda aka nuna a hoton.

2. Rataya maɓuɓɓugar ruwa a kan madauri sannan a haɗa nauyin gram 50 a ƙarshen maɓuɓɓugar ruwa. A auna tsawon maɓuɓɓugar ruwa a matsayin tsawon maɓuɓɓugar ruwa 1 (l)_o).

l₁ = ……… santimita.

3. Rataya nauyin gram 50 kuma, sannan a auna tsawon bazarar a matsayin tsawon bazarar 2 (l)₂).

w = 0,5 Newton

Δl = l₂ - l₁ =………… santimita

k = w / Δl = N/cm

3. Rataya nauyin gram 50 kuma, sannan a auna tsawon bazarar a matsayin tsawon bazarar 3 (l)₃).

w = 0,5 + 0,5 = 1 Newton

Δl = l₃ - l₁ = ………… santimita

k = w / Δl = N/cm

4. Rataya nauyin gram 50 kuma, sannan a auna tsawon bazarar a matsayin tsawon bazarar 4 (l)₄).

w = 0,5 + 0,5 + 0,5 = 1,5 Newtons

Δl = l₄ - l₁ = ………… santimita

k = w / Δl = N/cm

Binciken Bayanai da Bayanai:

Akwai ma'aunin bazara guda uku bisa ga sakamakon gwajin da ya gabata. Lissafa matsakaicin ma'aunin bazara:

k = (k + k + k): 3 =……………… N/cm

Zana jadawalin dangantakar da ke tsakanin nauyi (w) da ƙaruwar tsawon bazara (Δl)

Tattaunawa:

– Menene alaƙar da ke tsakanin ƙarfi da ƙaruwar tsawon bazara? Idan ƙarfin ya fi girma, shin ƙaruwar tsawon bazara zai fi girma, ya daɗe, ko ya fi ƙanƙanta?

– Shin ma'aunin bazara iri ɗaya ne? Idan ba haka ba, me yasa?

– Menene matsakaicin ma'aunin bazara da aka samu ta hanyar gwajin?

Kammalawa:

Ka faɗi ƙarshen abin da ka cimma.