2012CAP 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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2012 CAP Prize Exam真题免费下载

共计3小时考试时间

此套试卷由25道选择题以及3道大题组成

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

Normal atmospheric pressure P0 =1.01 × 10⁵Pa

Density of fresh water ρ =1.00 × 10³kg/m³

Specific heat of water Cw = 4186 J/(kg · K)

Specific heat of ice Ci = 2050 J/(kg · K)

Latent heat of water Lw = 2260 kJ/kg

Latent heat of ice Li = 334 kJ/kg

Density of ice ρi = 916 kg/m³

Fundamental charge e =1.60 × 10⁻¹⁹C

Mass of electron me =9.11 × 10⁻³¹kg

Mass of proton mp =1.67 × 10⁻²⁷kg

Planck’s constant h =6.63 × 10⁻³⁴Js

Coulomb’s constant 1/(4_πε0)=8.99 × 10⁹ N · m² /C²

Boltzmann’s constant k=1.38 × 10⁻²³J/K

A.U. Astronomical Unit = 1.49598 ×10¹¹m: The approx­imate distance from the Sun to the Earth.

Radius of the Earth RE =6.371 × 10⁶m

Radius of the Sun RS =6.96 × 10⁸m

Part A: Multiple Choice

1)Two planets X and Y travel counterclockwise in circu­lar orbits around a star as shown in the figure below:

The radii of their orbits are in the ratio 3 :1. At some time, they are aligned as in Fig. 1, making a straight line with the star. After five Earth years, the angular displacement of planet X is 90.0, as in Fig. 2. What is the angular displacement of planet Y at this time?

1. 35^◦
2. 90^◦
3. 180^◦
4. 360^◦
5. 468^◦

2)You are holding a bottle of sparkling water inside a car moving forward. When the driver applies the brakes:

1. Bubbles in the middle of the liquid will start to move forward with respect to the bottle.
2. Bubbles will start to move backward with respect the bottle.
3. Bubbles will stay at the same horizontal location in the water.
4. Depending on the speed of the car, bubbles might move forward or backward.

3)An Earth satellite revolves in a circular orbit at a height h from the surface of the Earth. If R is the Earth’s radius and g is the acceleration due to grav­ity at the surface of the Earth, then the speed of the satellite is given by:

1. 
2. 
3. 
4. 

4)Assume that sodium produces monochromatic light with a wavelength of 5.89× 10⁻⁷m. At what approx­imate rate would a 10 watt sodium-vapour light be emitting photons? Assume that the efficiency of the light bulb is about 30%.

1. 8.9× 10¹⁸ photons/sec
2. 3.0× 10¹⁹ photons/sec.
3. 9.9× 10¹⁹ photons/sec.
4. 2.0× 10²⁰ photons/sec.

5)Three batteries are placed in series. Each battery has an internal resistance r.If one of the batteries is placed the wrong way around as shown in the picture, what will be the total resistance of the three cells now?

1. r/3
2. r/2
3. r
4. 2r
5. 3r

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