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Now there is a circuit, and the bulb is on. Circuit-the path along which on electric current flows. (circle) Study this picture!

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Presentation on theme: "Now there is a circuit, and the bulb is on. Circuit-the path along which on electric current flows. (circle) Study this picture!"— Presentation transcript:

1 Now there is a circuit, and the bulb is on. Circuit-the path along which on electric current flows. (circle) Study this picture!

2 This circuit would have two lit bulbs. This circuit would have one lit.

3 Series circuit An electric circuit with only ONE path for the current (If one light goes out they all go out)

4 Parallel circuit An electric circuit with more than one path for the current (If one light goes out the others stay on)

5 Insulator – Any material that does not allow electric current to pass through it plastic rubber glass cloth wood like the protective coating on wires

6 Electromagnet is an electric circuit that creates a magnetic field. If the battery is disconnected the electromagnet CAN be turned off. A regular magnet can NOT be turned off. For an electromagnet to have a magnetic field it must be connected to a circuit. Electric currents produce magnetic fields. Electromagnets are used in motors. Can you draw this?

7 Electrical energy Electrical energy results from the movement of electrons. Electricity can be used to produce light. A toaster uses electrical energy to heat bread.

8 Compass In order to make a compass you must have a magnet The earth is one giant magnet A compass can detect the Earth’s magnetic field. Compasses all point the same way because of the Earth’s magnetic field. A compass is a magnet that can swing freely in any direction to detect a magnetic field.

9 Different charges attract Charges that are the same repel each other. Objects will attract or repel each other if they are charged. Clothes from a dryer will attract. Your hair will repel.

10 Magnets Magnets have 2 poles. North and South

11 What magnets repel? (repel=go away)


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