Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.3 Pressure Pressure Pressure?is defined as The concentration?of a force or the force per unit area For example, when a drawing pin is pushed ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.1 Density Density Density is defined as: The mass per unit volume of a material Objects made from?low density?materials typically have a?low ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.7 Comparing Energy Resources Comparing Energy Resources Each energy resource has various advantages and disadvantages associated with it A?renewable?energy...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.6 Energy Resources Energy Resources Energy resources are large stores of energy that can be transferred from one form into?electrical energy?that can be us...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.5 Power Power Machines, such as car engines, transfer energy from one type to another every second The rate of this energy transfer, or the rate of work do...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.4 Work, GPE & KE Work, GPE & KE Whenever any work is done, energy gets transferred (mechanically) from one store to another This is a consequence o...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.3 Kinetic Energy Kinetic Energy The kinetic energy (KE) of an object (also known as its kinetic store) is defined as: The energy an object has as a ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.2 Gravitational Potential Energy Gravitational Potential Energy The gravitational potential energy (GPE) of an object (also known as its gravitational stor...