選修物理I-3-3~3-4

選修物理I-3-3~3-4

11th Grade

5 Qs

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選修物理I-3-3~3-4

選修物理I-3-3~3-4

Assessment

Quiz

Physics

11th Grade

Practice Problem

Easy

Created by

來加 以

Used 1+ times

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5 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

如圖所示,有一傾角為30°的光滑固定斜面,斜面長L為10m,一小球從斜面頂端以v0 = 10m/s的速度沿水平方向拋出,試求小球滑到斜面底端時的水平位移S為多少m?(重力加速度量值為10m/s2

5

10

15

20

25

2.

MULTIPLE SELECT QUESTION

10 mins • 1 pt

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甲、乙兩球位於同一鉛直線上,其高度分別為h1 = 10.0m、h2 = 8.2m,如圖所示,將甲、乙兩球分別以v1v2的初速度沿同一水平方向拋出。若v1 = 10.0m/s,且甲球拋出後1s,恰好在P點與乙球相撞,則乙球必須在何時以多大的v2拋出?(應選兩項,重力加速度量值為10m/s2

乙球必須與甲球同時拋出

乙球必須在甲球拋出後0.6s拋出

乙球必須在甲球拋出後0.2s拋出

乙球的初速度v2必須為12.5m/s

乙球的初速度v2必須為25.0m/s

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

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如圖所示,一物體在傾斜角θ之光滑斜面上以與鉛直線成2θ之夾角,v0之初速,斜向拋出一球,重力加速度量值為g,且斜面極長,球可落在斜面上,則自拋出至落回斜面歷時多久?

2V₀/g

2V₀sinθ/g

2V₀cosθ/g

V₀sinθcosθ/g

2V₀sinθcosθ/g

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

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如圖所示,一球由斜角θ的長斜面以初速度v0拋出,方向與斜面垂直,且最後落回斜面。若重力加速度量值為g,則球飛行全程的平均速度量值為何?

v₀tanθ

v₀/tanθ

2v₀²tan²θ/g

v₀sinθ

v₀cosθ

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

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如圖,兩斜面均為光滑斜面,且高度均為45m。其傾斜角各為53°及37°,一鋼珠以某初速自左側斜面底端上滑,通過頂點後作斜向拋射,重力加速度量值為10m/s2。若鋼珠恰落到右側斜面底端處,則鋼珠的初速度為10倍根號多少m/s?

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17

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