Companion PDF worksheet for Edexcel IGCSE Physics Lecture 30 - Fission and Fusion. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 7.17 - Know that nuclear reactions, including fission, fusion and radioactive decay, can be a source of energy. Specification Point 7.18 - Understand how a nucleus of U-235 can be split by collision with a neutron, and that this process releases energy as kinetic energy of the fission products. Specification Point 7.19 -Know that the fission of U-235 produces two radioactive daughter nuclei and a small number of neutrons. Specification Point 7.20 - Describe how a chain reaction can be set up if the neutrons produced by one fission strike other U-235 nuclei. Specification Point 7.21 - Describe the role played by the control rods and moderator in the fission process. Specification Point 7.22 - Understand the role of shielding around a nuclear reactor. Specification Point 7.23 - Explain the difference between nuclear fusion and nuclear fission. Specification Point 7.24 - Describe nuclear fusion as the creation of larger nuclei resulting in a loss of mass from smaller nuclei, accompanied by a release of energy. Specification Point 7.25 - Know that fusion is the energy source for stars. Specification Point 7.26 - Explain why nuclear fusion does not happen at low temperatures and pressures, due to electrostatic repulsion of protons. Complete set of Chapter 7 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 7.10 - Explain the sources of background radiation from Earth and space. Specification Point 7.11 - Know that the activity of a radioactive source decreases over a period of time and is measured in becquerels. Specification Point 7.12 - Know the definition of the term half-life and understand that it is different for different radioactive isotopes. Specification Point 7.13 - Use the concept of the half-life to carry out simple calculations on activity, including graphical methods. Specification Point 7.14 - Describe uses of radioactivity in industry and medicine. Specification Point 7.15 - Describe the difference between contamination and irradiation. Specification Point 7.16 - Describe the dangers of ionising radiations and how to dispose of radioactive waste. Complete set of Chapter 7 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 29 - Radioactivity Part 2. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 7.10 - Explain the sources of background radiation from Earth and space. Specification Point 7.11 - Know that the activity of a radioactive source decreases over a period of time and is measured in becquerels. Specification Point 7.12 - Know the definition of the term half-life and understand that it is different for different radioactive isotopes. Specification Point 7.13 - Use the concept of the half-life to carry out simple calculations on activity, including graphical methods. Specification Point 7.14 - Describe uses of radioactivity in industry and medicine. Specification Point 7.15 - Describe the difference between contamination and irradiation. Specification Point 7.16 - Describe the dangers of ionising radiations and how to dispose of radioactive waste. Complete set of Chapter 7 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 7.1 - Use the following units: becquerel (Bq), centimetre (cm), hour (h), minute (min) and second (s). Specification Point 7.2 - Describe the structure of an atom in terms of protons, neutrons and electrons. Specification Point 7.3 - Know the terms atomic number, mass number and isotope. Specification Point 7.4 - Know that alpha particles, beta particles and gamma rays are ionising radiations emitted from unstable nuclei in a random process. Specification Point 7.5 - Describe the nature of alpha particles, beta particles, and gamma rays, and recall that they may be distinguished in terms of penetrating power and ability to ionise. Specification Point 7.6 - Practical: investigate the penetration powers of different types of radiation using either radioactive sources or simulations. Specification Point 7.7 - Describe the effects on the atomic and mass numbers of a nucleus of the emission of each of the four main types of radiation (alpha, beta, gamma and neutron radiation). Specification Point 7.8 - Understand how to balance nuclear equations in terms of mass and charge. Complete set of Chapter 7 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 28 - Radioactivity Part 1. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 7.1 - Use the following units: becquerel (Bq), centimetre (cm), hour (h), minute (min) and second (s). Specification Point 7.2 - Describe the structure of an atom in terms of protons, neutrons and electrons. Specification Point 7.3 - Know the terms atomic number, mass number and isotope. Specification Point 7.4 - Know that alpha particles, beta particles and gamma rays are ionising radiations emitted from unstable nuclei in a random process. Specification Point 7.5 - Describe the nature of alpha particles, beta particles, and gamma rays, and recall that they may be distinguished in terms of penetrating power and ability to ionise. Specification Point 7.6 - Practical: investigate the penetration powers of different types of radiation using either radioactive sources or simulations. Specification Point 7.7 - Describe the effects on the atomic and mass numbers of a nucleus of the emission of each of the four main types of radiation (alpha, beta, gamma and neutron radiation). Specification Point 7.8 - Understand how to balance nuclear equations in terms of mass and charge. Complete set of Chapter 7 Worksheets are available.

Complete set of companion PDF worksheets for Edexcel IGCSE Physics (4PH1) Chapter 6 - Magnetism and Electromagnetism. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Three worksheets included: 25 - Magnetism 26 - Electromagnets Part 1 27 - Electromagnets Part 2

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 6.9P - Describe the construction of electromagnets. Specification Point 6.10P - Draw magnetic field patterns for a straight wire, a flat circular coil and a solenoid when each is carrying a current. Specification Point 6.11P - Know that there is a force on a charged particle when it moves in a magnetic field as long as its motion is not parallel to the field. Specification Point 6.17P - Describe the structure of a transformer, and understand that a transformer changes the size of an alternating voltage by having different numbers of turns on the input and output sides. Specification Point 6.18P - Explain the use of step-up and step-down transformers in the large-scale generation and transmission of electrical energy. Specification Point 6.19P - Know and use the relationship between input and output voltages and the turns ratio for a transformer. Specification Point 6.20P - Know and use the relationship between input power and output power. Complete set of Chapter 6 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 27 - Electromagnets Part 2. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 6.9P - Describe the construction of electromagnets. Specification Point 6.10P - Draw magnetic field patterns for a straight wire, a flat circular coil and a solenoid when each is carrying a current. Specification Point 6.11P - Know that there is a force on a charged particle when it moves in a magnetic field as long as its motion is not parallel to the field. Specification Point 6.17P - Describe the structure of a transformer, and understand that a transformer changes the size of an alternating voltage by having different numbers of turns on the input and output sides. Specification Point 6.18P - Explain the use of step-up and step-down transformers in the large-scale generation and transmission of electrical energy. Specification Point 6.19P - Know and use the relationship between input and output voltages and the turns ratio for a transformer. Specification Point 6.20P - Know and use the relationship between input power and output power. Complete set of Chapter 6 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 6.8 - Know that an electric current in a conductor produces a magnetic field around it. Specification Point 6.12 - Understand why a force is exerted on a current-carrying wire in a magnetic field, and how this effect is applied in simple D.C. electric motors and loudspeakers. Specification Point 6.13 - Use the left-hand rule to predict the direction of the resulting force when a wire carries a current perpendicular to a magnetic field. Specification Point 6.14 - Describe how the force on a current-carrying conductor in a magnetic field changes with the magnitude and direction of the field and current. Specification Point 6.15 - Know that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it and describe the factors that affect the size of the induced voltage. Specification Point 6.16 - Describe the generation of electricity by the rotation of a magnet within a coil of wire and of a coil of wire within a magnetic field, and describe the factors that affect the size of the induced voltage. Complete set of Chapter 6 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 26 - Electromagnets Part 1. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 6.8 - Know that an electric current in a conductor produces a magnetic field around it. Specification Point 6.12 - Understand why a force is exerted on a current-carrying wire in a magnetic field, and how this effect is applied in simple D.C. electric motors and loudspeakers. Specification Point 6.13 - Use the left-hand rule to predict the direction of the resulting force when a wire carries a current perpendicular to a magnetic field. Specification Point 6.14 - Describe how the force on a current-carrying conductor in a magnetic field changes with the magnitude and direction of the field and current. Specification Point 6.15 - Know that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it and describe the factors that affect the size of the induced voltage. Specification Point 6.16 - Describe the generation of electricity by the rotation of a magnet within a coil of wire and of a coil of wire within a magnetic field, and describe the factors that affect the size of the induced voltage. Complete set of Chapter 6 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 6.1 - Use the following units: ampere (A), volt (V) and watt (W). Specification Point 6.2 - Know that magnets repel and attract other magnets and attract magnetic substances. Specification Point 6.3 - Describe the properties of magnetically hard and soft materials. Specification Point 6.4 - Understand the term magnetic field line. Specification Point 6.5 - Know that magnetism is induced in some materials when they are placed in a magnetic field. Specification Point 6.6 - Practical: investigate the magnetic field pattern for a permanent bar magnet and between two bar magnets. Specification Point 6.7 - Describe how to use two permanent magnets to produce a uniform magnetic field pattern. Complete set of Chapter 6 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 25 - Magnetism. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 6.1 - Use the following units: ampere (A), volt (V) and watt (W). Specification Point 6.2 - Know that magnets repel and attract other magnets and attract magnetic substances. Specification Point 6.3 - Describe the properties of magnetically hard and soft materials. Specification Point 6.4 - Understand the term magnetic field line. Specification Point 6.5 - Know that magnetism is induced in some materials when they are placed in a magnetic field. Specification Point 6.6 - Practical: investigate the magnetic field pattern for a permanent bar magnet and between two bar magnets. Specification Point 6.7 - Describe how to use two permanent magnets to produce a uniform magnetic field pattern. Complete set of Chapter 6 Worksheets are available.

Complete set of companion PDF worksheets for Edexcel IGCSE Physics (4PH1) Chapter 5 - Solids, Liquids and Gases. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Three worksheets included: 22 - Density and Pressure 23 - Changes of State 24 - Ideal Gases

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 5.15 - Explain how molecules in a gas have random motion and that they exert a force and hence a pressure on the walls of a container. Specification Point 5.16 - Understand why there is an absolute zero of temperature which is –273 °C. Specification Point 5.17 - Describe the Kelvin scale of temperature and be able to convert between the Kelvin and Celsius scales. Specification Point 5.18 - Understand why an increase in temperature results in an increase in the average speed of gas molecules. Specification Point 5.19 - Know that the Kelvin temperature of a gas is proportional to the average kinetic energy of its molecules. Specification Point 5.20 - Explain, for a fixed amount of gas, the qualitative relationship between: pressure and volume at constant temperature, pressure and Kelvin temperature at constant volume. Specification Point 5.21 - Use the relationship between the pressure and Kelvin temperature of a fixed mass of gas at constant volume. Specification Point 5.22 - Use the relationship between the pressure and volume of a fixed mass of gas at constant temperature. Complete set of Chapter 5 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 24 - Ideal Gases. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 5.15 - Explain how molecules in a gas have random motion and that they exert a force and hence a pressure on the walls of a container. Specification Point 5.16 - Understand why there is an absolute zero of temperature which is –273 °C. Specification Point 5.17 - Describe the Kelvin scale of temperature and be able to convert between the Kelvin and Celsius scales. Specification Point 5.18 - Understand why an increase in temperature results in an increase in the average speed of gas molecules. Specification Point 5.19 - Know that the Kelvin temperature of a gas is proportional to the average kinetic energy of its molecules. Specification Point 5.20 - Explain, for a fixed amount of gas, the qualitative relationship between: pressure and volume at constant temperature, pressure and Kelvin temperature at constant volume. Specification Point 5.21 - Use the relationship between the pressure and Kelvin temperature of a fixed mass of gas at constant volume. Specification Point 5.22 - Use the relationship between the pressure and volume of a fixed mass of gas at constant temperature. Complete set of Chapter 5 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 5.8P - Explain why heating a system will change the energy stored within the system and raise its temperature or produce changes of state. Specification Point 5.9P - Describe the changes that occur when a solid melts to form a liquid, and when a liquid evaporates or boils to form a gas. Specification Point 5.10P - Describe the arrangement and motion of particles in solids, liquids and gases. Specification Point 5.11P - Practical: obtain a temperature–time graph to show the constant temperature during a change of state. Specification Point 5.12P - Know that specific heat capacity is the energy required to change the temperature of an object by one degree celsius per kg of mass. Specification Point 5.13P - Use an equation to derive the change in thermal energy in a system. Specification Point 5.14P - Practical: investigate the specific heat capacity of materials including water and some solids. Complete set of Chapter 5 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 23 - Changes of State. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 5.8P - Explain why heating a system will change the energy stored within the system and raise its temperature or produce changes of state. Specification Point 5.9P - Describe the changes that occur when a solid melts to form a liquid, and when a liquid evaporates or boils to form a gas. Specification Point 5.10P - Describe the arrangement and motion of particles in solids, liquids and gases. Specification Point 5.11P - Practical: obtain a temperature–time graph to show the constant temperature during a change of state. Specification Point 5.12P - Know that specific heat capacity is the energy required to change the temperature of an object by one degree celsius per kg of mass. Specification Point 5.13P - Use an equation to derive the change in thermal energy in a system. Specification Point 5.14P - Practical: investigate the specific heat capacity of materials including water and some solids. Complete set of Chapter 5 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 5.3 - Know and use the relationship between density, mass and volume. Specification Point 5.4 - Practical: investigate density using direct measurements of mass and volume. Specification Point 5.5 - Know and use the relationship between pressure, force and area. Specification Point 5.6 - Understand how the pressure at a point in a gas or liquid at rest acts equally in all directions. Specification Point 5.7 - Know and use the relationship for pressure difference. Complete set of Chapter 5 Lessons are available.