2008CAP 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

真题与答案下载

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2008 CAP Prize Exam真题免费下载

共计3小时考试时间

此套试卷由三部分组成

20道选择题

3道带绘图简答题

以及3道开放性简答题组成

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

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

Specific heat capacity for water c = 4.19x10³J/(kg·K)

The Normal atmospheric pressure P0 =1.01 × 10⁵Pa

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

Boltzmann constant k = 1.38x10^-23 J/K

Part A: Multiple Choice

1)The Figure on the right shows the electric field lines for two point objects separated by a small distance. The charges q1 and q2 can be identified as

1. q1 is positive; q2 is negative; q1/q2 = -3;
2. q1 is negative; q2 is positive;q1/q2 = -3;
3. q1 is positive; q2 is negative; q1/q2 = -1/3;
4. q1 is negative; q2 is positive; q1/q2 = -1/3;
5. q1 is zero with charges redistributed over the surface of the object 1 due to electrostatic induction; q2 is positive.

2)As a simple pendulum swings back and forth, the forces acting on the suspended object may produce positive work, negative work or produce no work. Which of the forces if any from the listed three below does no work on the pendulum?

1. Tension.
2. Air resistance.
3. Gravitational force.
4. All the forces above do no work on the pendulum.
5. All the forces above do work on the pendulum.

3)A baseball bat is made of wood of uniform density. The bat is cut at the location of its centre of mass, as shown. Which of the following is true?

1. The piece on the right has the smaller mass;
2. The piece on the left has the smaller mass;
3. Both pieces have the same mass;
4. Impossible to determine without knowledge of the wood density.

4)A section of a hollow pipe and a solid cylinder have the same radius, mass and length. They both rotate about their long central axes with the same angular speed. Which of the following is true?

1. The pipe has a higher rotational kinetic energy.
2. The solid cylinder has a higher rotational kinetic energy.
3. They have the same rotational kinetic energy.
4. Impossible to determine without numerical data for radii, masses and lengths of the pipe and cylinder.

5)In a comet-Sun system, the position of the comet closest to the Sun is called perihelion, and the position of the comet farthest from the Sun is called aphelion. The two quantities that both have their highest values when the comet is in perihelion are:

1. the acceleration and the potential energy of the comet;
2. the speed and the potential energy of the comet-Sun system;
3. the speed and the acceleration of the comet;
4. the acceleration and the total energy of the comet-Sun system.

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