1998CAP Prize Exam加拿大高中物理大獎賽真題免費(fèi)下載

歷年CAP High School Prize Exam加拿大高中物理大獎賽

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1998 CAP Prize Exam真題免費(fèi)下載

共計3小時考試時間

此套試卷由兩部分組成

25道選擇題

以及3道簡答題組成

每道大題含有不同數(shù)量的小題

完整版下載鏈接見文末

部分真題預(yù)覽：

Data:

Speed of light c =3.00 × 10⁸m/s

Gravitational constant G =6.67 × 10^?11N · m²kg²

Radius of Earth R_E=6.38× 10^6?m

Radius of Moon R_M=1.70× 10^6?m

Mass of Earth M_E=5.98× 10^24?Kg

Mass of Moon M_M=7.35× 10^22?Kg

Mass of Sun M_S=1.99× 10^30?Kg

Radius of Moon's orbit R_EM=3.84× 10^8?m

Radius of Earth's orbit R_ES=1.50× 10^11?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?μ_0?= 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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