8B1 Electromagnets Application. TITLE: Electromagnets Objectives: To be able to label (level 4) and describe how an electromagnet works including its.

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Presentation transcript:

8B1 Electromagnets Application

TITLE: Electromagnets Objectives: To be able to label (level 4) and describe how an electromagnet works including its fields (level 5) using keywords (level 6) To review explore the factors affecting the strength of an electromagnetic field. (level 5) To know where we use electromagnets in everyday life and explain how an electrical bell and fire door lock works (level 5/6) KEY WORDS: North Pole South Pole Magnet Field Magnetic Wire Coil Electromagnet Iron Core Current Attract Repel Nickel Iron Cobalt Outcomes: Complete the worksheet to summarise the law of magnetism. Explain how an electrical bell and fire door lock work and the factors that can affect the strength of an electromagnet. Predict a magnetic field diagram and describe the pattern Using scientific keywords correctly (level 5/6) For each word below, write a question for which these would be the answer:

com/watch?v=7wmZr U6VQzE

Starter Activity (10 mins) How does each image on the slide relate to electromagnets

Fire door lock Application: Can you create a step by step method of how this fire door lock works using electromagnets. (level 5) How could we increase the strength of the electromagnet used? (level 6)

Electric Bell Application: Can you create a step by step method of how the electric school bell works using electromagnets. (level 5) How could we increase the strength of the electromagnet used? (level 6)

Learning Objective: To be able to label (level 4) and describe how an electromagnet work and its fields (level 5) On your worksheet: Stretch and challenge Task 3: Predict and complete your diagram on the worksheet and label the North and South Pole

Learning Objective: To be able to label (level 4) and describe how an electromagnet works (level 5) using keywords (level 6) An electric __________ flowing through a ______ __ ______ makes a ___________ field around the wire. A coil of wire with a _____________flowing through is called an __________________. An_______ core inside the coil makes the field ___________. The magnetic _____________ of an electromagnet is similar to the ____________ field of a _____________. Keywords: bar magnet coil of wire current electromagnet field iron iron core magnetic power pack stronger

Magnet Magnetic field Pole Attract Repel Permanent magnet Magnetic Non-magnetic Iron filings Using scientific keywords correctly (level 5/6) For each word below, write a question for which these would be the answer: Extension work: If I am the Answer, what is the Question?