Electronics for Kids: Play with Simple Circuits and Experiment with Electricity

Electronics for Kids: Play with Simple Circuits and Experiment with Electricity — page 5
Step 8 Stage an Intruder Alert 17 Step 9 What If the Intruder Alarm Doesn’t Work 17 What’s Next 18 2 Making Things Move with Electricity and Magnets 19 How Magnets Work 20 Try It Out Find Some Magnetic Objects 21 Meet the Electromagnet 22 Project 3 Create Your Own Electromagnet 23 Shopping List 24 Tools 25 Step 1 Check Your Bolt 25 Step 2 Remove Insulation from One End of the Coil Wire 26 Step 3 Wind the Wire 27 Step 4 Connect the Negative Battery Terminal to the Coil 28 Step 5 Connect the Switch 28 Step 6 Test Your Super Electromagnet 30 Step 7 What If the Electromagnet Isn’t Working 31 Meet the Motor 31 Project 4 Create a Motor 32 Shopping List 34 Tools 35 Step 1 Create the Rotor 35 Step 2 Build the Motor’s Structure 36 Step 3 Place the Magnets 37 Step 4 Reinsulate Part of the Coil 38 Step 5 Rev Up Your Motor 39 Step 6 What If the Motor Doesn’t Work 40 What’s Next 41 3 How to Generate Electricity 43 Generating Electricity with Magnets 44 A Changing Magnetic Field Creates Electricity 44 How Does a Generator Work 45 Creating Electricity from Water or Wind 46 Meet the Multimeter 47 How to Measure Voltage 47 What Are AC and DC 48 x CONTENTS IN DETAIL