国际版ALevel物理和化学一样一共分为6个单元,AS阶段完成第一、二、三单元,A2完成第四、五、六单元。
ALevel需要完成全部6个单元。
其中第3和6单元是实验单元(笔试)。
第三单元考察第一、二单元中涉及到的实验,在ALevel中占比10%。
第六单元覆盖整个ALevel阶段涉及到的实验,在ALevel总成绩中占10%。
16个核心实验
ALevel物理和化学一样也有16个核心实验,意味着学生至少需要熟练掌握这16个核心实验。
1
Determine the acceleration of a freely-falling object
测量自由落体运动物体的加速度
2
Use a falling-ball method to determine the viscosity of a liquid
利用液体中物体的下落测量液体的粘度
3
Determine the Young modulus of a material
确定材料的杨氏模量
4
Determine the speed of sound in air using a 2-beam oscilloscope, signal generator, speaker and microphone
确定声音在空气中的传播速度(利用双波束示波器,信号发生器,扬声器以及麦克风)
5
Investigate the effects of length, tension and mass per unit length on the frequency of a vibrating string or wire
研究长度、拉力以及单位长度的质量对绳子的振动频率的影响
6
Determine the wavelength of light from a laser or other light source using a diffraction grating
利用衍射光栅来确定激光或其他光源的波长
7
Determine the electrical resistivity of a material
材料电阻率的确定
8
Determine the e.m.f. and internal resistance of an electrical cell
电池电动势以及内阻的确定
9
Investigate the relationship between the force exerted on an object and its change of momentum
物体受力和动量变化的关系研究
10
Use ICT to analyse collisions between small spheres,
e.g. ball bearings on a table top
ICT对小球碰撞的研究
11
Use an oscilloscope or data logger to display
and analyse the potential difference (p.d.) across
a capacitor as it charges and discharges
through a resistor
利用示波器或data logger对在充放电过程中的
电容器两端电势差的演示及分析。
12
Calibrate a thermistor in a potential divider circuit
as a thermostat
作为恒温器的分压器中热敏电阻的校正
13
Determine the specific latent heat of a phase change
相变过程中比潜热的测定
14
Investigate the relationship between pressure
and volume of a gas at fixed temperature
恒温下气体压强和体积的关系研究
15
Investigate the absorption of gamma radiation by lead
铅对伽马辐射吸收的研究
16
Determine the value of an unknown mass
using the resonant frequencies of
the oscillation of known masses
利用已知物体的共振频率来测定位置物体的数据