Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.1.6 Reducing Energy Loss Reducing Energy Loss Energy loss can be reduced by doing one of two things: By reducing the amount of?unwanted?(wasted) energy that ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.1.5 Core Practical: Investigating Thermal Energy Core Practical 8: Investigating Thermal Energy Equipment List Resolution?of measuring equipment: Thermometer...
Modelling with Differentiation What can be modelled with differentiation? Recall that?differentiation?is about the?rate?of?change?of a function and provides a way of finding?minimum?and?maximum?val...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.1.4 Conduction, Convection & Radiation Conduction Thermal energy transfers from hotter areas to cooler areas by the processes of: Conduction Convection R...
ncreasing & Decreasing Functions What are increasing and decreasing functions? A function, f(x), is?increasing?if?f'(x)?>?0 This means the value of the function (‘output’) increases as x inc...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.1.3 Efficiency Efficiency The efficiency of a system is a measure of how well energy is transferred in a system Efficiency is defined as: The ratio of...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.1.2 Conservation of Energy Conservation of Energy The principle of conservation of energy states that: Energy cannot be created or destroyed, it can o...
Introduction to Derivatives Before introducing a?derivative, an understanding of a?limit?is helpful What is a limit? What might I be asked about limits? You may be asked to use your GDC to plot the...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.1.1 Energy Stores & Transfers Energy Stores & Transfers Energy can be stored in different ways, and there are changes in the way it is stored when a ...
