AQA A Level Study guides, Class notes & Summaries
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![A Level Physics - Paper 1 Questions & Answers!!](/docpics/5389743/664cc01b13c46_5389743_121_171.jpeg)
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A Level Physics - Paper 1 Questions & Answers!!
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Superconductivity - ANSWER Superconductivity means that a material has zero resistivity/resistance. Resistance of the material decreases proportional to temperature, it becomes superconducting once under a critical transition temperature. 
 
Describe interaction that is responsible for keeping protons and neutrons together in a stable nucleus - ANSWER The strong interaction has a short range. It is attractive up to 5fm and repulsive from around below 0.5fm. The force is negligible for distances ...
![AQA A level Physics Paper 1 Questions & Answers(RATED A)](/docpics/5389648/664cbdc3b5d02_5389648_121_171.jpeg)
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AQA A level Physics Paper 1 Questions & Answers(RATED A)
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Current - ANSWER Rate of flow of charge 
 
Coulomb - ANSWER The amount of charge passing a point when a current of 1A flows for 1s 
 
Potential difference - ANSWER The work done per unit charge in moving a small point positive charge between two points 
 
Threshold Voltage for a Diode - ANSWER The voltage at which a current will begin to flow at, assumed to be +0.6V if not stated 
 
Reverse Bias - ANSWER When very little currency can flow in the reverse direction of a diode 
 
Variable Resistor ...
![aqa a level physics paper 1 Correct Questions & Answers!!](/docpics/5389584/664cbcd979693_5389584_121_171.jpeg)
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aqa a level physics paper 1 Correct Questions & Answers!!
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What is meant by work function (2) - ANSWER Minimum energy required by an electron to escape from (1) a metal surface (1) 
 
What is meant by ionisation energy? (2) - ANSWER Minimum energy required to remove an electron from an atom (1) from the ground state (1) 
 
Why do emitted electrons have a kinetic energy that varies up to a maximum value? (4) - ANSWER Energy of a photon is fixed/constant (1) 
Energy is required for electrons to overcome work function ø (1) 
Electrons deeper into/below th...
![AQA A-LEVEL CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS](/docpics/5286173/66421a201f65a_5286173_121_171.jpeg)
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AQA A-LEVEL CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS
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AQA A-LEVEL CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANSAQA A-LEVEL CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANSAQA A-LEVEL CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS
![AQA AS CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS JUNE](/docpics/5286170/66421a1d8910f_5286170_121_171.jpeg)
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AQA AS CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS JUNE
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AQA AS CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS JUNEAQA AS CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS JUNE
![AQA A-LEVEL CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS](/docpics/5286167/66421a1ae10c5_5286167_121_171.jpeg)
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AQA A-LEVEL CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS
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AQA A-LEVEL CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANSAQA A-LEVEL CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANSAQA A-LEVEL CHEMISTRY PAPER 2 PHYSICAL & ORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS
![AQA AS CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS](/docpics/5286160/664219de0c008_5286160_121_171.jpeg)
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AQA AS CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS
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AQA AS CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANSAQA AS CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANSAQA AS CHEMISTRY PAPER 1 PHYSICAL & INORGANIC CHEMSIRTY EXAM GUIDE QNS & ANS
![AQA A-Level Chemistry Exam (2024) || All Questions & Answers (Graded A+)](/docpics/5191975/6636621a0b6cd_5191975_121_171.jpeg)
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AQA A-Level Chemistry Exam (2024) || All Questions & Answers (Graded A+)
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AQA A-Level Chemistry Exam (2024) || All Questions & Answers (Graded A+) 
AQA A-Level Chemistry Exam (2024) || All Questions & Answers (Graded A+) 
 
Topic 1 - ANSWER - Atomic Structure 
 
Topic 2 - ANSWER - Amount of Substance 
 
State what is meant by the term molecular formula. - ANSWER - the actual no. atoms of each element in a compound 
 
Topic 3 - ANSWER - Bonding 
 
Explain why CF4 has a bond angle of 109.5°. - ANSWER - -there are 4 bonding pairs and no lone pairs 
-repel equally and th...
![AQA A-Level Spanish Comprehensive Exam || With 100% Correct Solutions (Rated A+)](/docpics/5191952/6636619d2c80e_5191952_121_171.jpeg)
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AQA A-Level Spanish Comprehensive Exam || With 100% Correct Solutions (Rated A+)
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AQA A-Level Spanish Comprehensive Exam || With 100% Correct Solutions (Rated A+) 
AQA A-Level Spanish Comprehensive Exam || With 100% Correct Solutions (Rated A+) 
 
Según - ANSWER - According to 
 
Me sorprende - ANSWER - It surprises me 
 
Entre la gente que conozco - ANSWER - Between the people that I know 
 
Conozco a - ANSWER - I know of 
 
Mi madre dice que - ANSWER - My mum says that 
 
Mi madre diría que - ANSWER - My mum would say that 
 
Lo bueno es - ANSWER - The good thing is 
 
Lo...
![AQA A Level Biology Paper 3 (synoptic) Test || All Questions & 100% Accurate Answers (Graded A+)](/docpics/5191922/66366125e14a0_5191922_121_171.jpeg)
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AQA A Level Biology Paper 3 (synoptic) Test || All Questions & 100% Accurate Answers (Graded A+)
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AQA A Level Biology Paper 3 (synoptic) Test || All Questions & 100% Accurate Answers (Graded A+) 
AQA A Level Biology Paper 3 (synoptic) Test || All Questions & 100% Accurate Answers (Graded A+) 
 
What are the useful properties of water and why ? - ANSWER - 1) Water is a metabolite - in many metabolic reactions including condensation and hydrolysis 
2) Water is a solvent - medium in which enzyme catalysed reactions take place (metabolic reactions ) and readily dissolves substances like inorgan...
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