AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/2 Paper 2 Designing and Making Principles Mark scheme June 2023 Version: 1.0 Final AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/2 Paper 2 Designing and Making Principles Mark scheme June 2023 Version: 1.0 Final AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/2 Paper 2 Designing and Making Principles Mark scheme June 2023 Version: 1.0 Final AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/2 Paper 2 Designing and Maki...

VAQA_AS Economics Paper 2_Question Paper_2023 | ECON 3140_THE NATIONAL ECONOMY IN A GLOBAL CONTEXT AS ECONOMICS Paper 2 The national economy in a global context Thursday 16 May 2019 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the insert • a calculator. Instructions • Use black ink or black ball-point pen. Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Ans...

AQA A-LEVEL PSYCHOLOGY PAPER 3 2020. Materials For this paper you must have: • an AQA 16-page Answer Book. You may use a calculator. Instructions • Use black ink or black ball-point pen. • Write the information required on the front of your answer book. The Paper Reference is 7182/3R. • In Section A, you should answer all questions. • In Section B, choose one topic. Answer all questions on the topic you choose. • In Section C, choose one topic. Answer all questions on th...

Activity level (nuclear) Number of unstable nuclei that disintegrate per second, measured in Bq Angular speed (w) Angle through which a point on a rotating object rotates through per second Angular acceleration change of angular velocity per time Background radiation weak level of radiation found everywhere Binding energy energy released when forming a nucleus from it's constituent nucleons. Also the energy required to

AQA A LEVEL BIOLOGY Paper 3 MS 2021-Best for 2022 Actual Exam preparation

Give the full electron configuration of an Al atom and a Cr3+ ion 1s2 2s2 2p6 3s2 3p1 1s 2s2 2p6 3s2 3p6 3d6 Deduce the formula of the ion that has a charge 2+ with the same electron Sr2+ Deduce the formula of the compound that contains 2+ ions and 3- ions that both have the same electron configuration as argon CaP Deduce which of Na+ and Mg2+ is the smaller ion 2 marks Mg 2+ Both have the same number of shielding however Mg2+ has more protons so higher nuclear charge and so stronger ...

AS BIOLOGY 7401/2 Paper 2 Mark scheme June 2019 Version: 1.0 Final *196A74012/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examination. The standardisation p...

Start at the lowest level of the mark scheme and use it as a ladder to see whether the answer meets the descriptor for that level. The descriptor for the level indicates the different qualities that might be seen in the student’s answer for that level. If it meets the lowest level then go to the next one and decide if it meets this level, and so on, until you have a match between the level descriptor and the answer. With practice and familiarity you will find that for better answers you wi...

AQA GCSE Biology Paper 2 What is homeostasis? – ANSWER: Homeostasis is the maintenance of a constant internal environment in order to maintain optimum conditions for enzyme and cellular function. Give examples of conditions maintained by homeostasis in the body - ANSWER● Blood glucose concentration Body temperature Water levels

Scientists investigated the action based on the enzyme ATP synthase. They made reaction mixtures each containing: • ATP synthase • buffer (to control pH) • substrates. One based on the substrates required within these reaction mixtures is inorganic phosphate (Pi). Tick ( ) one box to show which other substrate the scientists must add to the reactionmixtures to produce ATP. [1 mark] Adenine Adenosine diphosphate Glucose Ribose