Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：3.1.4 The Doppler Effect The Doppler Effect The?Doppler Effect?is defined as: The apparent change in wavelength and frequency of a wave...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 3.1.3 The Wave Equation The Wave Equation All waves obey the?wave equation, which is used to calculate the?wave?speed: Where: v...
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Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：3.1.2 Describing Wave Motion Describing Wave Motion When describing wave motion, there are several terms which are important to know, includin...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：3.1.1 Transverse & Longitudinal Waves Transverse & Longitudinal Waves Waves can exist as one of two types: Transverse Longitudinal &nb...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 2.3.5 AC & DC AC & DC Direct Current A direct current (d.c.) is defined as A current that is steady, constantly flowing in the...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 2.3.4 Electricity & Heat Electricity & Heat When electricity passes through a component, such as a resistor, some of the electrical e...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 2.3.3 Electrical Safety Electrical Safety Mains electricity is potentially lethal Potential differences as small as 50 V can pose a serious h...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 2.3.2 Calculating Energy Transfers Calculating Energy Transfers Work?is done when charge flows through a circuit Work done is equal to the?en...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 2.3.1 Electrical Power & Fuses Electrical Power Power is defined as The rate of energy transfer or the amount of energy transferre...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：2.2.5 Electrical Components Thermistors & LDRs Thermistors A?thermistor?is a?temperature-dependent?resistor It is represented by the follo...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：2.2.4 IV Graphs IV Graphs As the potential difference across a component is increased, the current also increases This is because potential di...
