Te whakamātautau ture a Hooke

Ngā Tohutohu Whakamātautau Ture a Hooke

Ngā whāinga o te whakamātautau:

– Te tirotiro i te whanaungatanga i waenga i te kaha me te pikinga o te roa o te puna
– Whakatauhia te pūmau puna

Ngā taputapu me ngā rauemi: Puna, uta 50 karamu (4), tūru, rūrū

Ariā taketake:

Te Ture a Hooke e kī ana ko te rahi o te kaha he rite tonu ki te pikinga o te roa o te puna. Ko te nui ake o te kaha e pā ana ki te puna, ko te nui ake o te pikinga o te roa o te puna. He pumau te ōwehenga o te rahi o te kaha ki te pikinga o te roa o te puna. Ka pā te ture a Hooke ina kore te kaha e neke ake i te rohe pūmau o te puna. Nā Robert Hooke (1635-1703) i whakatakoto te ture a Hooke.

Mā te pāngarau, ka whakaaturia te ture a Hooke mā te whārite: k = F / Δl. Ko: k = pūmau puna, F = kaha, Δl = pikinga o te roa o te puna.

Ko Newton te waeine ā-ao mō te kaha, ko te mita te waeine ā-ao mō te roa, nō reira ko Newton/mita (N/m) te waeine ā-ao mō te pūmau puna.

Ngā Hipanga Whakamātautau:

1. Huihuia te tūāpapa kia rite ki te mea e whakaaturia ana i te pikitia.

2. Whakairihia he puna ki runga i tētahi tūnga, kātahi ka tāpirihia he taumaha 50 karamu ki te pito raro o te puna. Inehia te roa o te puna hei roa puna 1 (rita)_o).

l₁ = ……… Henimita.

3. Whakairihia anō he kawenga 50 karamu, kātahi ka ine i te roa o te puna kia rite ki te roa o te puna 2 (rita)₂).

w = 0,5 Newton

Δl = l₂ - l₁ =………… Henimita

k = w / Δl =………… N/cm

3. Whakairihia anō he kawenga 50 karamu, kātahi ka ine i te roa o te puna kia rite ki te roa o te puna 3 (rita)₃).

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

Δl = l₃ - l₁ = ………… Henimita

k = w / Δl =………… N/cm

4. Whakairihia anō he kawenga 50 karamu, kātahi ka ine i te roa o te puna kia rite ki te roa o te puna 4 (rita)₄).

w = 0,5 + 0,5 + 0,5 = 1,5 Ngā Newton

Δl = l₄ - l₁ = ………… Henimita

k = w / Δl =………… N/cm

Raraunga me te Tātari Raraunga:

E toru ngā pūmau puna e ahu mai ana i ngā hua o te whakamātautau o mua. Tātaihia te pūmau puna toharite:

k = (k + k + k) : 3 = …………… N/cm

Tuhia he kauwhata o te whanaungatanga i waenga i te kaha ā-papa (w) me te pikinga o te roa o te puna (Δl)

Kōrero:

– He aha te whanaungatanga i waenga i te kaha me te pikinga o te roa o te puna? Mēnā he nui ake te kaha, ka nui ake, ka pumau, ka iti iho rānei te pikinga o te roa o te puna?

– He ōrite ngā pūmau puna? Ki te kore, he aha ai?

– He aha te pūmau puna toharite i riro mai i te whakamātautau?

Whakatau:

Whakapuakina tō whakatau.