Edexcel IGCSE Maths 2 Answers to activities and exercises Unit 1 NUMBER 11 ACTIVITY 1 Time (h) Speed (km/h) 1 160 2 80 4 40 6 26.7 7 22.9 8 20 EXERCISE 1 1 a 4 days 2 3 4 5 6 7 8 a a a a a a a 28 days 8 men 12 people 60 years 40 000 men 12 hours 32 km/litre b 2 days b b b b b b b 6 days 16 men 8 people 15 years 20 000 men 72 km/h 20 litres c 2 c c c c c 2 days 3 4.8 days 32 men 6 people 1200 years 400 men EXERCISE 1* 1 a Number of light bulbs (N) 6 5 2 30 b 3000 = NP 2 a Number of
Premium Roman numerals Harshad number
EXAMINERER TIPS for IGCSE History 0470 Good revision is not just learning your history but also how you use it to get the best grade you can. General advice Preparing to get a good grade begins as soon as you start your IGCSE course. You can prepare by: • finding out what you need to know. • organising your notes. Make a list of the topics studied under the headings ‘Core content’ and ‘Depth or Nineteenth/Twentieth Century Studies’. • knowing how your IGCSE papers are structured and practising past
Premium Answer Question Need to know
IGCSE Paper 2 Tips Part 1 – Passage A ● Question 1 ○ Read the question first. ○ Read Passage A with the question in mind. ○ Look at the question again to make sure you understand. ○ IMPORTANT: whatever the question asks you to create‚ it is VITAL that you include details from Passage A but EQUALLY VITAL that you include your own original ideas/details. ○ The mark scheme’s top band says that the best marks will be awarded to students who make inferences from the information that is already there and
Premium Sentence Question Quotation mark
Nuclear Chemistry: The Good vs. the Ugly The definition for nuclear chemistry is the application of chemical techniques to the solution of problems in nuclear physics. This includes the discovery of naturally occurring and synthetic radioactive elements and the results of nuclear fission. There are both pros and cons in nuclear chemistry. People believe that nuclear chemistry is bad for the environment but there are a lot of great things that can come out of this. Things like medical uses‚ food
Premium Nuclear fission Gamma ray Nuclear power
IGCSE ECONOMICS NOTES The economic problem (Ch. 1) - All materials on the earth (resources) are scarce (scarcity). - Resources are used to make goods and services. - Some resources like air are free. - All people have basic needs to survive i.e. food‚ air‚ water and shelter. - People want more than they need . - Wants are unlimited. - The economic problem is how to decide the allocation of scarce resources to meet unlimited wants. - Scarce resources have many alternative uses. - The cost
Premium Supply and demand
Chemistry Gen: Course Description Year 2 PART - II CGT 21a Unit I. Basic physical chemistry I * Gaseous state: Gas laws‚ kinetic theory of gas‚ collision and gas pressure derivation of gas laws from kinetic theory‚ average kinetic energy of translation. Boltzmann constant and absolute scale of temperature‚ Maxwell’s distribution law of molecular speeds (without derivation)‚ most probable‚ average and root mean square speed of gas molecules‚ principle of equipartition of energy (without
Premium Thermodynamics Entropy Temperature
Situations for the role play could include: * Buying a train or bus ticket * Asking for directions * Shopping * Making enquiries about lost property * Making a reservation in a hotel or campsite. You may have to discuss the following and will be given information to guide your response: * your work experience * your region * your hobbies "Pourriez-vous répéter la question s’il vous plaît?" = Could you repeat the question please? "Je ne sais pas" = I
Premium Grammatical tense Trigraph Present tense
Psychology Notes – Memory Flow of information in memory: Encoding Storage Retrieval Key terms: Encoding: changing information so that it can be stored Storage: holding information in the memory system Retrieval: recovering information from storage Multi-store: the idea that information passes through a series of memory stores Sensory store: holds information received from the senses for a very short period of time Short-term store: holds approximately seven chunks of information for
Premium Learning Memory processes Hippocampus
To What Extent Godalming a Clone Town? By Matilda Pegler Candidate Number: Centre Name: King Edwards School‚ Witley‚ GU8 5SG Centre Number: Contents: Introduction to Godalming. INTRODUCTION Godalming is situated in the centre of the Borough of Waverley in Surrey‚ England‚ 4 miles (6.4km) SSW of Guildford‚ it is 30.5 miles (49.1 km) southwest of London and is regarded as an expensive residential town‚ due to its visual appeal and easily accessible transport links. The question I am researching
Premium House Real estate Apartment
ECONOMICS GLOSSARY YEARS 10 & 11 A Term Definition Absolute advantage The ability to produce a good or service at an `absolutely` lower cost. Absolute or nominal prices The prices that we observe today in terms of today’s pounds. Also called nominal or current prices. Aggregate demand All planned expenditures for the entire economy added together. Aggregate demand curve Planned purchase rates for all goods and services in the economy at various
Premium Supply and demand Economics Inflation