2000CAP 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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2000 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

Radius of Earth R_E=6.38× 10⁶ m

Radius of Moon R_M=1.70× 10⁶ m

Mass of Earth M_E=5.98× 10²⁴ Kg

Mass of Moon M_M=7.35× 10²² Kg

Mass of Sun M_S=1.99× 10³⁰ Kg

Radius of Moon's orbit R_EM=3.84× 10⁸ m

Radius of Earth's orbit R_ES=1.50× 10¹¹ m

Acceleration due to gravity g =9.80m/s²

Fundamental charge e =1.60× 10⁻¹⁹ C

Mass of electron m_e =9.11 × 10⁻³¹kg

Mass of proton m_p =1.673 × 10⁻²⁷kg

Mass of Neutron m_n =1.675 × 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

Absolute zero T=0 K,T=-273°C

Energy conversion 1eV=1.6 x 10^-19J

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

Part A: Multiple Choice

1)Two high performance bicycle wheels have the same mass but one is solid disk and the other is a hoop with very light(as compared to the mass of the rime)spokes. Which wheel takes the most energy to accelerate to a speed v? Ignore any air and rolling resistances.

1. The disk wheel requires more energy
2. The spokes wheel requires more energy
3. Both take the same amount of energy
4. It depends on the radius of each wheel

2)An astronaut on a strange planet finds that the acceleration due to gravity is two times greater than that on earth. Which of the following could explain this?

1. The mass of the planet is half that of the earth's but its radius is the same
2. The radius of the planet is half that of the earth's but its mass is the same
3. Both the mass and the radius are twice the earth's values
4. Both the mass and the radius are half the earth's values

3)A ball of mass of 10g is hung from the end of a light vertical spring and set oscillating with an amplitude of 10cm. The period of the oscillation is 1s. If the ball is now replaced by another with a mass of 40g and again set oscillating with the same amplitude, its new period of oscillation will be,

1. 1s
2. 2s
3. 4s
4. 8s

4)The human ear canal, which is open to the atmosphere and ends at the ear drum, is about 3cm long. Which of the following is the best approximation to the fundamental resonant frequency of the ear canal?

1. 1500Hz
2. 3000Hz
3. 6000Hz
4. 11000Hz

5)A metal ball is connected to the ground with a wire via a switch. The switch is initially closed (i.e. the ball is connected to the ground) while a charge +Q is brought close to the ball(but not touching). While the charge is near the ball, the switch is opened and then the charge is taken away. The charge on the ball is now,

1. zero
2. positive
3. negative
4. unchanged from its initial charge

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