ICSE Class 7 Physics, Unit 7: Electricity and Magnetism
From the CISCE curriculum. 8 key concepts, about 4 days of study at 20 to 30 minutes a day.
What this unit aims at
The basic law of electromagnetism states that “Like poles of magnets repel one another and unlike poles attract”. When an electric current is passed through a coil, the coil behaves like a magnet. This magnet is called an electromagnet. The strength of this magnet is increased by inserting a core of suitable material. Many objects around us, like electric bell, electric motor, loudspeaker, etc. have electromagnets in them. A cell is a source of electricity and are used in torches, watches, calculators, etc. When connected to a device like bulb, it sends current through the bulb and the bulb lights up. Flow of charges constitute current. Materials that allow current to flow through them are called conductors whereas materials that do not allow passage of current through them are called insulators. Children will learn how electric components are arranged in simple series and simple paralle
Your child should be able to
- state the Law of Magnetism
- describe test for a magnet
- explain the phenomenon of electromagnetism
- describe an electromagnet and its uses
- explain construction and working of an electric bell
- relate current to flow of charge
- recognize electric cell as a source of electricity
- define resistors as the component that opposes the flow of current
- represent different components like cell, battery, key, bulb, connecting wire, resistor by standard symbols
- make simple series circuits and simple parallel circuits
Key concepts in this unit
- Law of Magnetism Test for a magnet (by repulsion)
- Electromagnetism, Electromagnets and their applications- Electric bell
- Electric current as a flow of charges
- Electric cell as source of electricity
- Resistors as components that oppose the flow of current.
- Symbolic representation of electrical components (key, Simple electric circuit- Series and Parallel
- battery, bulb, conducting wire, resistor): Battery as a collection of cells connected in series.
- battery, bulb, conducting wire, resistor): Good and Bad conductors of electricity
Teach this unit at home
- A day-by-day plan from the CISCE concepts, so you know what to cover each day.
- A step-by-step script for each day, so you know what to say and ask (AI-written from the CISCE curriculum, so check it against your child's school book).
- A quiz at the end.
From the CISCE Curriculum for Classes I to VIII (2016). CISCE sets what is taught, not the textbooks, so schools use different books and there are no page numbers here. Adhian Gurus is not affiliated with CISCE.