2001CAP Prize Exam加拿大高中物理大奖赛真题免费下载

历年CAP High School Prize Exam加拿大高中物理大奖赛

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2001 CAP Prize Exam真题免费下载

共计3小时考试时间

此套试卷由两部分组成

25道选择题

以及3道简答题组成

每道大题含有不同数量的小题

完整版下载链接见文末

部分真题预览：

Data:

Speed of light c =3.00 × 10⁸m/s

Gravitational constant G =6.67 × 10⁻¹¹N · m²kg²

Acceleration due to gravity g =9.80m/s²

Fundamental charge e =1.60× 10⁻¹⁹ C

Mass of electron me =9.11 × 10⁻³¹kg

Mass of proton mp =1.67 × 10⁻²⁷kg

Planck’s constant h = 6.63x10^-34 J·s

Coulomb’s constant 1/(4πε0) = 8.99x10⁹ N·m²/C²

Permeability of free space μ₀ = 4π × 10⁻⁷N/A²

Speed of sound in air v_s=343m/s

Density of air ρ=1.2kg/m³

Boltzmann constant k=1.38 × 10⁻²³J/K

Energy conversion 1eV=1.6 x 10^-19J

Avogadro's number N_A=6.02 × 10²³mol^-1

Part A: Multiple Choice

1)Three identical resistors are connected across a voltage source V so that one of them is in parallel with two others which are connected in series. The power dissipated through the first one, compared to the power dissipated by each of the other two, is approximately

1. the same
2. half as much
3. twice as much
4. four times as much

2)The diagram below shows various positions of a child in motion on a swing. Somewhere in front of the child a stationary whistle is blowing. At which position will the child hear the highest frequency for the sound of the whistle?

1. At B when moving toward A
2. At B when moving toward C
3. At C when moving toward B
4. At C when moving toward D

3)In a Young double slit experiment, green light is incident on the two slits. The interference pattern is observed on a screen. Which one of the following changes would cause the observed fringes to be more closely spaced?

1. Reducing the separation between the slits
2. Using blue light instead of green light
3. Using red light instead of green light
4. Moving the light source further away from the slits

4)A thin lens with focal length f is to be used a a magnifying glass. Which of the following statements regarding this situation is true?

1. A converging lens must be used, and the object be placed at a distance greater than 2f from the lens
2. A diverging lens must be used, and the object be placed between f and 2f from the lens
3. A converging lens must be used, and the object be placed at a distance less than f from the lens
4. A converging lens must be used, and the object be placed at any point other than the focal point

5)The figure shows the path of a ray of light as it passes through three different materials with refractive indices n1, n2 and n3. The figure is drawn to scale. What can we conclude concerning the indices of these three materials?

1. n3<n2<n1
2. n3<n1<n2
3. n2<n1<n3
4. n1<n3<n2

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