Microwaves gcse science booklet

Microwaves have wavelengths that are shorter than radio waves. Satellite tv and mobile phone or smartphone networks. Chemistry data booklet ib chemistry revision notes and syllabus. Microwaves are absorbed by fatwater molecules in the outside layers of food. Full coverage of physics revision questions for the 2018 onwards syllabus.

All students are required to study the content of the twoyear combined science gcse course. Quizlet flashcards, activities and games help you improve your grades. Xrays and gamma rays are ionising radiation and are both used in medicine. Claire has bought a new microwave oven as she find microwaves easy to use and convenient for cooking, briefly explain how microwaves are used to heat food. Infrared radiation electromagnetic waves, absorb, emit, infra red, pir. Clean copies of this booklet must be made available to candidates for papers 2 and 3 slp2, hlp2, slp3 and hlp3. Microwaves are a portion or band found at the higher frequency end of the radio spectrum, but they are commonly distinguished from radio waves because of the technologies used to access them. Feb 06, 2018 microwaves are electromagnetic waves with wavelengths longer than those of terahertz thz wavelengths, but relatively short for radio waves. Microwaves are emitted by the radar gun and reflected by the car, as shown in figure 4. Physics p1 unit 1 one word answer booklet year 11 all classes.

Electromagnetic waves what are infrared waves infrared waves are part of the electromagnetic spectrum. Chemistry data booklet ib chemistry revision notes and. This section will cover the following topics energy and intensity, wave communications, radio waves and microwaves, infrared and light, ultraviolet, xrays and gamma rays, the atmosphere and global warming. Radio microwave ultraviolet visible light infrared x ray gamma ray. Gcse science a physics higher tier unit physics p1 wednesday 25 may 2016 afternoon time allowed. The cooker has a metal door screen and outer case which absorb or reflect microwaves to protect people who use the cooker. Physics at a glance, animations, exam specifications, data, diagrams, photographic images and more. Electromagnetic waves what are microwaves microwaves are part of the electromagnetic spectrum. Chances are if you want a mathsscience book ive written it or i am writing it. This booklet cannot be used for paper 1 of the examination slp1 and hlp1, but the periodic table given in section 6 will be available as part of these examination papers. Microwaves have wavelengths that are shorter than radio waves how are microwaves. Microwaves are very important in science as the microwaves are used to make a special conductor made of copper called chalcopyrite and they can add in the process of separating chemical. The seawinds instrument onboard the quick scatterometer quikscat satellite uses radar pulses in the kuband of the microwave spectrum. All questions are set primarily by topic, not by paper.

Science b physics phy1h aqa gcse mark scheme 2011 january series 6 phy1h question 1 continued. The electromagnetic spectrum the electromagnetic em spectrum. Gcse sciencecircuits wikibooks, open books for an open. Microwave technology, uses and dangers of microwaves. Scott operates his own engineering consulting and training business.

Gcse physics the safety issues of microwaves and xrays. Aqa gcse physics p1 electromagnetic spectrum em teaching. Sir william herschel discovered infrared waves in 1800. A typical microwave oven ramps up the electricity from a 120volt wall outlet to an. Microwaves are sometimes considered to be very short radio waves highfrequency and highenergy radio waves.

Powerpoint and worksheet used for teaching new aqa gcse physics p1 to a foundation level y10 group. Edexcel gcse physicsscience pearson qualifications. Radar transmitters on ships emit microwaves which are picked up by passive radar devices on smaller boats. The amount of heating depends on the intensity of the microwave. Aqa cannot give permission to schoolscolleges to photocopy any. How science works the gcse in science requires students to develop the skills, knowledge and understanding of how science works, described as follows. Jul 25, 2012 schoolphysics is an online resource base for all 11 to 19 year old physics and science students and their teachers. Which of these is the correct term for a wave where the individual particles move at right angles to the direction of the wave energy transfer. Mar 27, 2017 so, water molecules are made up of one oxygen and two hydrogen atoms and the it has a dipole moment which essentially makes the molecule positive in one direction and negative in the other direction and this makes the molecules realign its direction due to change in direction of electric field such as the one shown above and it causes motion of all the water molecules and this leads to. Microwave radiation and radio waves penetrate your skin and are absorbed by body tissue. The wavelengths for ultra violet and infrared waves.

Microwaves are not just used for cooking food, but for many other things as well. All the extra questions you need to take the separate physics gcse are in the triple science physics gcse sections. A typical microwave oven ramps up the electricity from a 120volt wall outlet to an incredible. Exam board content from bbc bitesize for students in england and northern ireland. For the love of physics walter lewin may 16, 2011 duration. Matter, models and density temperature and state pressure journeys forces what is a typical size of an atom. Gamma ray xrays ultra violet visible light infrared microwaves radio waves wavelength 5x10 5 x 1010 5 x 107 5 5000. Nov 01, 2008 occasionally it is a treat to remind ourselves how remarkable some of our most common gadgets are.

The gcse textbooks and other digital resources are available online. For example, free resource samples, news, events e. Microwaves have wavelengths approximately in the range. Gcse science a physics higher tier unit physics p1. Schoolphysics is an online resource base for all 11 to 19 year old physics and science students and their teachers. Aqa p1 6 electromagnetic spectrum teaching resources. Physics gcse p1 keywords study guide by phys1cs includes 33 questions covering vocabulary, terms and more.

Microwaves are used because they pass through the atmosphere and through the ionosphere. Microwaves are used to send signals to and from satellites. Level 2 5 questions, 5 sentences, 5 words 10 credits each iii. Microwaves that penetrate haze, light rain and snow, clouds, and smoke are beneficial for satellite communication and studying the earth from space. Some microwaves have wavelengths that are absorbed by water molecules. Microwaves are used for cooking food, communications and for satellite communications. For gcse physics coursework and exams, and students, parents and teachers. P2 additionaltriple physics gcse simplified syllabus. Occasionally it is a treat to remind ourselves how remarkable some of our most common gadgets are.

You can change your mind about which emails you would like to receive at any time. The heat energy is then transferred throughout the rest of the food by conduction and convection. The signals may be for television programmes, telephone conversations, or monitoring the earth for example. Gcse physics gcse science the best revision for gcse. This spectrum includes visible light, xrays and radio waves. Kinetic theory states of matter, solids, liquids, gases. Microwaves are electromagnetic waves with wavelengths longer than those of terahertz thz wavelengths, but relatively short for radio waves. Infrared waves have a higher frequency than microwaves and are used widely in communications.

Start studying gcse edexcel physics paper 1 topic 5. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Nov 18, 2016 for the love of physics walter lewin may 16, 2011 duration. In some cases microwaves can be used to treat health problems better than drugs. Microwaves have some wavelengths that pass easily through the atmosphere and they are used to transmit information to satellites. Microwaves are primarily used in medical cases as an alternative to surgery. What is the name of the effect causing this change in frequency. Apr 21, 2012 for the love of physics walter lewin may 16, 2011 duration. Table 2 car frequency of emitted microwaves in khz frequency of reflected microwaves in khz a 27 000 000 27 000 002 b 27 000. Gcse science physics 91 electromagnetic waves youtube. Microwave cookers use waves which give energy to the water molecules in food, causing the food to get hot. This question asked the students how the reflected microwaves. P1 lesson 16 light infrafred micro radio waves poster blank.

So, water molecules are made up of one oxygen and two hydrogen atoms and the it has a dipole moment which essentially makes the molecule positive in one direction and negative in the. Contents religious education 3 english language 4 english literature 5 maths6 science7 science8 separate science 9. This scatterometer measures changes in the energy of the. These lessons follow the order of the aqa science a text book produced by. Gcse ocr revision physics gcse ocr revision physics. They heat materials if they can make atoms or molecules in the material vibrate. They all have a longer wavelength than sound waves.

The 91 edexcel specification for gcse combined science, examined from summer 2018. A passive radar device is composed of an outer plastic. This can heat your internal organs and may damage them. Introduction to science revision booklet teaching resources. A passive radar device is composed of an outer plastic casing and metal plates inside. These lessons follow the order of the aqa science a text book produced by nelson thorne. Microwaves are part of the electromagnetic spectrum. Other uses of microwaves university of alaska fairbanks. It is part of a suite of gcse qualifications offered by edexcel. The wavelengths for ultra violet and infrared waves have not been given. Sent from us, on behalf of carefully selected organisations such as publishers and exam boards relating to education. Different wavelengths of microwaves grouped into subbands provide different information to scientists.

For example medicine, industry, science, consumer goods, and communication. Apr 23, 2015 microwaves are very important in science as the microwaves are used to make a special conductor made of copper called chalcopyrite and they can add in the process of separating chemical compounds, so, the scientists can study each component of the compound. Choose the exam specification that matches the one you study. Understanding microwaves is a complete introduction to this important field. Jan 03, 2012 some of the microwaves transmitted by the speed gun are absorbed by the ball. Revised glossary for aqa gcse physics combined science trilogy. Jan 26, 2014 these lessons follow the order of the aqa science a text book produced by nelson thorne. Youve probably done quite a lot of work in basic electrical circuits in lower school, but we will revise them here so dont worry if youve forgotten them. Electromagnetic radiation can be useful as well as hazardous. Implementation of any science project idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Polarisation of microwaves practical a level physics duration.