Edexcel International Gcse Physics Student Book Answers

[Alexandrie Gallup]

Formost home educators, GCSE Physics is not an option and they must do IGCSE. GCSE physics does not have a practical exam, BUT the head of the exam centre has to sign a form saying that every candidate has been offered the opportunity to carry out all core practicals at the centre. Most centres won't do this for external candidates.

Although there is no practical exam in IGCSE Physics, an understanding of practical work is necessary. Both specifications have a list of core practicals that the candidate is required to understand, but no form has to be signed to say these have been done/observed making the specifications easier for private candidates to access. IGCSE physics specifications have 'alternative to practicals' questions as part of the written exam papers. Carrying out practicals will help with understanding but it is not a requirement, videos can be found of most experiments - the Physics Practicals page offers ideas and support.

If you are not sure what textbooks or revision books to buy, or where to find answers, please ask on the HE exams and alternatives group You only need one student textbook and one is not better than the others, it is personal preference.

CGP offer a large range of revision resources and workbooks. Some people find CGP revision books cluttered, and other people love them. Take a look on the 'look inside' feature of Amazon to see whether they will suit your child.

Grade 9-1 Edexcel International GCSE Physics: Exam Practice Workbook (includes Answers) (2017) A workbook to accompany the above revision book. Can be useful for testing knowledge before progressing to whole exam papers.

Grade 9-1 Edexcel International GCSE Physics: Complete Revision & Practice with Online Edition (2107) This book combines the CGP revision guide with some questions (fewer questions than if buying the exam practice workbook). There might be some overlap with the above books.

New Grade 9-1 Edexcel International GCSE Physics: Revision Question Cards (2019) Note these are NOT flash cards of topic summaries, but are question cards. Not essential, but might be useful for some students.

Past papers can be accessed through the specification page or here. Papers with an R suffix were available in a different time zone. They are the same specification and can be used as practice. Paper 1P will also have Double Award listed on the front - this is because the same paper is used for both qualifications - those sitting IGCSE Physics sit 1P and 2P, those sitting Double Award Science sit 1B, 1C and 1P.

You can use questions from the past papers of the 2011 syllabus for practice, but be mindful of any minor changes in the syllabus that happened when updated in 2017. There is a mapping document on the 2017 specification page, (2016 - Word Doc) which describes changes and additions from the previous 2011 specification which might be helpful.

Cambridge Physics is 'tiered' students enter for core (which allows them to achieve grade 5-1) or extended (which allows them to achieve grade 9-1). Those doing Core just need to study the core content, those doing Extended need to study the core and supplementary content.

The specification has three papers: a 1h Alternative to Practical, a 45 min Multiple Choice and a 1 hr 15 Theory paper. The multiple choice and theory exams used to be taken back to back (so effectively 2 hours), but for the past two years have been examined on separate days.

CAIE science IGCSEs are tiered. This means that less able students can opt for the core tier, (papers 1, 3 and 6) but can only get a maximum grade of C or 5. More able students can opt for the higher (extended) tier (papers 2, 4 and 6) with the grade range of 9-1.

Some books include answers, others don't. Some publishers will provide links to answers if you contact them. If you are not sure what textbooks or revision books to buy, or where to find answers, please ask on the HE exams and alternatives group

Past papers can be found on the specification pages or sites such as pastpapers.co and papacambridge. Each series of 0625 (besides the March series - which is only sat in India) has 3 sets of papers available. These are because they were sat in different time zones. They are the same syllabus and useful for practice. You can use both 0972 and 0625 papers to practice either spec. There are a couple of subtopics being dropped from 2023 exams, and a few extra added but papers from before will still be useful.

In fact, if you have difficulty with Maths, you may need to work on these fundamental skills as well. At a minimum, you need to make sure that you are comfortable with percentages, ratios, formulas, fractions, decimals, powers (especially to the power of 10), averages (mean, mode and median), and square roots.

Cambridge CAIE IGCSE Physics introduces a two-tier grading method. The more preferable tier for apt students is Extended since it allows scoring the maximum. For students whose knowledge is weaker, there is the Core tier.

Oxford AQA International GCSE Physics assessment consists of two papers. You can earn 90 marks with each. Within each 1.5-hour assessment, you will need to answer structured and complex questions based on the 8 topics of the syllabus.

The number of marks required to receive a certain grade varies based on grade boundaries, which are calculated after each examination session. For instance, to get a 9 in 2023, students needed to earn a minimum of 137 marks out of 180. You can find more information about Edexcel IGCSE mark schemes and grade boundaries in previous years here.

Every year the Cambridge exam board introduces new grade thresholds explaining the minimal number of marks you need to get this or that grade. After grading all the papers in an exam session, the board applies a weighting factor. Its purpose is to ensure that sessions across the years have a comparable level of difficulty. In 2023, for instance, one could receive 200 weighted marks. 157 marks was enough to get a 9.

According to the grade boundaries for 2023, students should earn between 180-136 marks to get a 9. For a 5, a minimum of 80 marks would suffice. Grade thresholds are calculated every year to ensure all students are in the same fair conditions.

The short answer is to use various learning opportunities, techniques, and resources. Combined, they can make Physics more intelligible. Some of them are as simple as keeping your notes neat, the others are as fun as experimenting at home. Here are some tactics you can try.

Finally, look for clues in the question as to the depth of the answer you need to give. For example, if it is a two-mark question, you need to give a brief answer with two valid points to gain both marks.

YouTube is of great help to those who absorb information through visuals. It is also an excellent source for physics enthusiasts who want to know more. On top of experiment-related content, there are many educational videos explaining complex concepts in simple words and with a lot of fun.

Finally, when you have finished a calculation, look for silly mistakes. If you take a step back, does the answer seem to still make sense? Often, a double-check will allow you to pick up small errors in your work.

Every year, exam boards issue a report outlining how well students did in their IGCSE physics. These reports highlight the most common mistakes previous generations of IGCSE students had and why they were wrong.

They also explain how strong candidates performed in their papers and what the best points in their answers were. Basically, these reports explain what examiners require from the exam papers. Use this information to provide answers that meet their expectations.

Begin your IGCSE Physics revision with the first category. You need to dedicate the most time to figuring out these difficult concepts. As you gain confidence, gradually shift your focus towards the topics you know better.

However, never neglect the areas you think you have no problems with. While these might require less revision time, a quick review can refresh your memory and prevent any unexpected surprises on exam day.

Khan Academy provides detailed video tutorials and practice exercises for physics topics, making it an excellent resource for reinforcing understanding and practicing problem-solving skills. Perhaps a good place to start when kicking off a topic, or if you want to go into detail on a weak area.

Physics and Maths Tutor website offers a wealth of resources specifically for IGCSE physics, including past papers, revision notes, and practice questions to help students prepare thoroughly for exams.

Chemguide is also good for Physics! While focused on chemistry, it also has plenty of resources that can be helpful for understanding the overlap between chemistry and physics concepts in the IGCSE curriculum.

Ideally, you should use as many varying resources as possible. Because they provide content suitable for different types of learners (visual, audio, etc.), you can learn physics more effectively. Besides, it is a good idea to look at the same concepts from different angles. A specialised website or video may provide a better explanation of the things that were not clear in class.

Unlike your teacher, a tutor will always have time to answer your questions. They are more attentive to your needs and oftentimes easier to talk to. On top of that, input from a different person is extremely valuable. There can be many ways to explain the same concept, and you want to get to know them to see what works best for you.

20 FORCES AND MOTION FORCES AND MOTION a SOME OTHER EXAMPLES OF FORCES If the man gets someone to help him push the car, the forward force is bigger. \"' Figure 2.4 More forces! Both of the forces pushing the car are acting in the same direction, so you can It is not always easy to spot forces acting on objects. The compass needle find the total forward force by adding the two forces together. If both people in Figure 2.4a, which is a magnet, is affected by the magnetic force between are pushing with a force of 300 N, then: it and the other magnet. Magnetic forces are used to make electric motors rotate, to hold fridge doors shut, and in many other situations. total forward force = 300 N + 300 N If you comb your hair, you sometimes find that some of your hair sticks to the = 600 N comb as shown in Figure 2.4b. This happens because of an electrostatic force between your hair and the comb. You can see a similar effect using a Van de This means we can just add all the forces together to find the resultant force. Graaf! generator, as shown in Figure 9.6 on page 87. As force is a vector quantity, we also need to think about the directions in which the forces are acting, and we do this by deciding which direction is the A parachute causes the parachutist to descend more slowly because positive(+) direction. In this case, we can think of the force from the people as an upward force acts on the parachute called air resistance or drag. Air positive and the force from friction as negative. The + and - signs just show resistance is like friction - it tries to oppose movement of objects through that the forces are acting in opposite directions. the air. Designers of cars, high-speed trains and other fast-moving objects try to reduce the effects of this force. Objects moving through liquids So, if the force from friction is 300 N: also experience a drag force - fast-moving animals that live in water have streamlined (smooth and efficient) shapes to reduce this force. unbalanced force = 300 N + 300 N - 300 N Hot air balloons are carried upwards in spite of the pull of gravity on =300 N them because of a force called upthrust. This is the upward push of the surrounding air on the balloon. An upthrust force also acts on objects in BALANCED AND UNBALANCED FORCES liquids. Figure 2.7 shows two situations in which forces are acting on an object. In More types of force, such as electric and nuclear forces, are mentioned in the tug of war contest the two teams are pulling on the rope in opposite other chapters of this book. The rest of this chapter will look at the effects of directions. For much of the time the rope doesn't move because the two forces. forces are balanced. This means that the forces are the same size but act in opposite directions along the line of the rope. There is no unbalanced force in MORE THAN ONE FORCE one direction or the other. When the forces acting on something are balanced, the object does not change the way it is moving. In this case if the rope is As we saw earlier, in most situations there will be more than just one force stationary, it remains stationary. Eventually, one of the teams will become tired acting on an object. Look at the man trying to push the car, shown in and its pull will be smaller than that of the other team. When the forces acting Figure 2.5. The two forces act along the same line, but in opposite directions. on the rope are unbalanced the rope will start to move in the direction of the This means that one is negative (because it acts in the opposite direction to greater force. There will be an unbalanced force in that direction. Unbalanced the other) and, if they are equal in size, they add up to zero and the car will not forces acting on an object cause it to change the way it is moving. The rope move. was stationary and the unbalanced forces acting on it caused it to accelerate. \"' Figure 2.7 Balanced forces and unbalanced The car in Figure 2.7 is designed to have an enormous acceleration from rest. forces As soon as it starts to move the forces that oppose motion - friction and drag - must be overcome. The thrust of the engine is, to start with, much greater -F friction opposing than the friction and drag forces. This means that the forces acting on the car the motion in the horizontal direction are unbalanced and the result is a change in the way that the car is moving - it accelerates! Once the friction forces balance the \"' Figure 2.5 The re ,ultanl force is zero because the two forces are balanced. thrust the car no longer accelerates - it moves at a steady speed. pushes on the car FRICTION by the men Friction is the force that causes moving objects to slow down and finally stop. friction opposing The kinetic energy of the moving object is transferred to heat as work is the motion done by the friction force. For the ice skater in Figure 2.8 the force of friction is very small so she is able to glide for long distances without having to do any \"' Figure 2.6 The total pushing force is the sum of the two individual forces. work. It is also the force that allows a car's wheels to grip the road and make it accelerate - very quickly in the case of the racing cars in Figure 2.8. Scientists have worked hard for many years to develop some materials that reduce friction and others that increase friction. Reducing friction means that machines work more efficiently (wasting less energy) and do not wear out so quickly. Increasing friction can help to make tyres that grip the road better and to make more effective brakes.

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