1998CAP Prize Exam加拿大高中物理大奖赛真题免费下载

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1998 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

Combustion Energy of Sugar 15MJ/kg

Useful Reation: for x<1, (1+X)^-n ≈(1-nx)

Part A: Multiple Choice

1)What mechanical power P is required to move an object of mass m against an opposing force F at a constant velocity v?

1. P=Fv
2. P=mv²/2
3. P=mv/F
4. P=F²/mv

2)A rocket generates a thrust force by ejecting hot gases from an engine. If it takes 1ms to combust 1kg of fuel, ejecting it ar a speed of 1000m/s,what thrust is generated?

1. 1000N
2. 10000N
3. 100000N
4. 1000000N

3)A rubber band (two parallel strands of elastic material) has a spring constant of 10N/m. If the band is cut in one place such that it now forms a single long strand of elastic material, what is its new spring constant?

1. 20N/m
2. 40N/m
3. 5N/m
4. 2.5N/m

4)A ball rests upon a flat piece of paper on a table top. The paper is pulled quickly and horizontally to the right as shown. Relative to the its initial position with respect to the table, the ball initially,

1. moves to the right
2. moves to the left
3. remains stationary
4. its motion depends on the speed at which the paper was removed

5)Two small spheres with masses m1 and m2 hang on weightless, insulating threads with lenghts I1 and I2. The two spheres carry a charge of q1 and q2 respectively. The spheres hang such that they are level with one another and the threads are inclined to the vertical at a angle θ1 and θ2. Which of the following conditions is required if θ1=θ2

1. m1=m2
2. |q1|=|q2|
3. I1=I2
4. none of the above

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