A-Level Physics Tuition Singapore/H2 Physics Tuition/JC Physics Tutor

Hi Physics A-Level students

Attached is the definitions list for Alernating Currents

Alternating Currents

Characteristics of alternating currents

1 Peak value current of an alternating current is defined as the maximum possible value of the alternating current.

2 Root-mean-square current of an alternating current flowing in a resistor has the same value as that of a steady current flowing in the same resistor such as to produce the same average heating rate in the resistor.

Rectification with a diode

3 Rectification is a process of converting an alternating current to a direct current (flowing in one direction).

4 A diode is an electrical device with two terminals that allows current to flow through it in one direction only.

• This reply was modified 123 days ago by  admin.
• This reply was modified 123 days ago by  admin.

Hi Phyiscs Tuition A Level Students

Attached definitions on thermal physics

THERMAL PHYSICS

Internal energy

1 Internal energy of a system is the sum of the random kinetic and potential energies of the molecules of the system.

Temperature scales

2 Two regions in thermal equilibrium exchanges thermal energy at the same rate and are at the same temperature.

3 A thermometric property is a physical quantity that varies with temperature.

4 Thermodynamic temperature scale (absolute temperature scale) does not depend on any thermometric property, but is based on the properties of an ideal gas.

5 Absolute zero is the temperature at which all substances have a minimum internal energy.

6 The triple point of water is the temperature at which the saturated water vapour, pure water and ice all coexist in thermal equilibrium. (Ttr = 273.16 K)

Specific heat capacity

7 The specific heat capacity of a substance is defined as the heat required to cause a unit rise in temperature of a unit mass of the substance.

Specific latent heat

8 The specific latent heat of a substance is defined as the heat released or absorbed when unit mass of the substance undergoes a change of state at constant temperature.

First law of thermodynamics

9 First law of thermodynamics states that the increase in internal energy of a system is the sum of the work done on the system and the heat supplied to the system.

The ideal gas equation

10 Molecules of an ideal gas have no inter-molecular attraction.

11 The Avogadro constant is the number of atoms in 0.012 kg of carbon-12.

12 One mole of any substance is the amount containing a number of particles equal to the Avogadro constant.

Request concise notes for superposition

A-Level Physics Tuition Singapore / A-Level Physics Tutors Singapore

Hi All H2 Physics Students

Please take note that Quantum Physics Concise Notes is ready for collection.

Thanks

From A-Level Physics Tutor Singapore

Can i request for SAJC 2011 revision package3
solutions for topic

7-gravitational field qn 12
8-oscillations qn13
9-thermal physics qn14
10-super position qn 15,16
13,14-current and dc circuit qn18 19 20
thank you

A-Level Physics Tuition Singapore/H2 Physics Tuition/JC Physics Tutor

Hi A-level/H2/JC Physics

Hope u enjoy my Quantum Physics lesson and the mind mapping techiques and practices will help u in the coming Mid Year Exam

Cheers!
From A-Level Physics Tuition Tutor Singapore

A-Level Physics Tuition Singapore/H2 Physics Tuition/JC Physics Tutor

Hi A-level/H2/JC Physics Tuition students

We have completed Nuclear Physics Part I and Part II

Please take note the following misconceptions

1) Binding energy is NOT the energy binding the nucleons together. Binding energy is the work done (or energy supplied into the atom) to break the nucleus into its constituent nucleons.

2) The binding energy per nucleon binding energy per nucleon is an indication of a nucleus’ stability, NOT binding energy.

Next lesson will be on Nuclear Physics 3 on radioactivity decay and will be starting revision by using top 5 JCs Prelim Qns
Cheers

Mr Ong SH – A Level/JC/H2 Physics Tutor