Home » 國(guó)際競(jìng)賽 » Details

2011CAP Prize Exam加拿大高中物理大獎(jiǎng)賽真題答案下載

Category: 國(guó)際競(jìng)賽, 福利干貨, 競(jìng)賽資料 Date: 2018年8月27日下午2:52

歷年CAP High School Prize Exam加拿大高中物理大獎(jiǎng)賽

真題與答案下載

CAP Prize Exam加拿大物理奧林匹克學(xué)術(shù)活動(dòng)

翰林國(guó)際教育全網(wǎng)首發(fā)

力爭(zhēng)超快速發(fā)布最全資料

助你在升學(xué)路上一帆風(fēng)順

為你

千千萬(wàn)萬(wàn)遍

2011 CAP Prize Exam完整版真題免費(fèi)下載

共計(jì)3小時(shí)考試時(shí)間

此套試卷由23道選擇題以及3道大題組成

每道大題含有不同數(shù)量的小題

請(qǐng)點(diǎn)擊訪問(wèn)下方鏈接進(jìn)入下載頁(yè)面

2011 CAP Prize Exam完整版真題

2011CAP Prize Exam加拿大物理奧林匹克完整版答案免費(fèi)下載

部分真題答案預(yù)覽：

Part A選擇題部分：

Part B簡(jiǎn)答題部分

Problem 1

(a) To compare the e?ciencies, we need to convert them to the same unit:

3.785 L/gal

USA car e?ciency = 30 mpg ? =7.84 L/100km

(30 mpg)×(1.609 km/mile)

European car e?ciency = 7.80 L/100km

The European car is the most e?cient.

(b)

0.2 × 7.8 L/100km =1.56 L/100km ? European car new e?ciency = 6.24 L/100km

0.2 × 30 mpg =6 mpg ? USA car new e?ciency = 36 mpg

3.785 L/gal

USA car new e?ciency = 36 mpg ? =6.53 L/100km

(36 mpg)×(1.609 km/mile)

Therefore the European car is still the most e?cient, by ⁶^.⁵³^?⁶^.²⁴×100% = 4.65%. Note that a 20% improvement

6.24

in e?ciency measured in L/100km is more important than a 20% improvement in e?ciency measured in mpg.

(c) The distance traveled in each part of the trip is given by the velocity during this part, multiplied by the travel time, so the total distance traveled is:

ΔX =0.5h × 60km/h +0.5h × 120km/h +0.5h × 80km/h +0.5h × 100km/h = 180km

(d) The work done by the the drag force is the sum of the work in each part of the motion:

W =_i₌₁FiΔXi = FiViΔti = 240N ×60km/h ×0.5h+540N ×120km/h ×0.5h+320N ×80km/h ×0.5h +420N ×100km/h ×0.5h = 73.4 MJ

(e) The total gasoline used is given by the sum of the amounts used in each part of the motion:

FiViΔti

l ==

i=1 35 MJ/L×E?ciencyi 240N×60km/h 540N×120km/h 320N×80km/h 420N×100km/h

0.5h × (+ ++)/(35 MJ/L) = 16.7 L

0.075 0.15 0.11 0.135

(f) The amount of gasoline used per kilometer travelled (denoted by lkm) for each part of the motion is then given by:

FV ΔtF 1 J/m F 1 L

== × = ×× 10^?³

^lkm 35MJ/L×E?ciency×V Δt E?ciency 35 MJ/L E?ciency 35 km

For the di?erent speeds of the car the lkm can be calculated:

V = 60km/h ? lkm =9.14 L/100km V = 120km/h ? lkm = 10.3 L/100km V = 80km/h ? lkm =8.31 L/100km V = 100km/h ? lkm =8.89 L/100km

Therefore gasoline is used most e?ciently when the car is traveling at 80km/h .

完整版真題答案下載鏈接請(qǐng)注冊(cè)或登錄后查看

文件為PDF格式

推薦使用電腦下載

如需打包下載，請(qǐng)聯(lián)系小助手了解更多

翰林學(xué)員全站資料免費(fèi)打包下載，專享高速下載通道。

[vc_btn title="查看更多CAP Prize Exam加拿大物理奧林匹克學(xué)術(shù)活動(dòng)相關(guān)詳情" color="primary" align="center" i_icon_fontawesome="fa fa-globe" css_animation="zoomIn" button_block="true" add_icon="true" link="url:http%3A%2F%2Fwww.linstitute.net%2Farchives%2F92551||target:%20_blank|"]
[products columns="2" orderby="title" order="ASC" ids="310579,310582 "]

以上就是關(guān)于【2011CAP Prize Exam加拿大高中物理大獎(jiǎng)賽真題答案下載】的解答，如需了解學(xué)校/賽事/課程動(dòng)態(tài)，可至翰林教育官網(wǎng)獲取更多信息。

【組隊(duì)招募】經(jīng)濟(jì)/數(shù)模競(jìng)賽CNEC/IEO/SIC/HiMCM…組隊(duì)報(bào)名！