Presentation on theme: "Unit J Magnets and Electromagnets Form 2C 8th of November St. Mary´s College in Crosby."— Presentation transcript:
Unit J Magnets and Electromagnets Form 2C 8th of November St. Mary´s College in Crosby
Todays Lesson... Unit J Magnets and Electromagnets J1 – Magnetic Fields J2 - Magnets J3 – Making Magnets J4 - Electromagnets J5 - Variables
J1 – Magnetic Fields Class Notes: - There is a pulling force between magnets and some metals. - The magnet attracts the metal.
J1 – Magnetic Fields Exercise... Which of those materials are metals? X X
J1 – Magnetic Fields Board Exercise... a) What would happen to the fridge magnets, if the fridge door in th ephoto was made of plastic? b) Aluminium drinks cans be recycled, but not steel ones. How can you decide if your drink can is steel or aluminium?
Magnetic Magic... Why do magnets sometimes attract and sometimes repel? North pole South pole South Pole North pole
Magnetic Magic... Class Notes... North pole South pole South Pole North pole - If we bring the north pole of two magnets towards the south pole of another magnet they atract each other. - If you bring the north poles of two magnets togheter they repel each other. Two south poles togheter also repel.
Magnetic Field Class Notes... - Magnetic field is the space all around a magnet where its magnetic force works. - The magnetic field is very strong near the magnet. What is a magnetic Field? Magnetic Field Lines