Explore Electric Current & Its Effects: Perfect for High School Teachers & Homeschooling Parents
Introduction:
Greetings, high school teachers and homeschooling parents! Get ready to embark on an exciting journey into the world of electric current and its effects. In this blog post, we will present three captivating DIY activities that will teach and demonstrate the fascinating concepts of electric current to your students. Let's dive in and make learning electrifying!
Name of company | Voltage | Size | Battery type | Symbol |
|---|---|---|---|---|
Eg: Energizer | 1.5V | AAA | Alkaline | LR |
Activity 1: Discover the Heating Effect of Electric Current
Materials Required:
- Nichrome wire
- Batteries
Procedure:
- Begin by obtaining a length of nichrome wire and a couple of batteries.
- Connect one end of the wire to the positive terminal of a battery and the other end to the negative terminal.
- As the electric current flows through the wire, carefully observe and measure the changes in temperature.
- Discuss with your students how the heating effect is a result of the wire’s resistance to the flow of electric current.
Instruction video on Heating Effect of Electric current
Fuse
Fuse is a device that breaks the circuit when excess current flows through the circuit. It is used to protect electrical devices.
Activity 2: Unveil the Magnetic Effects of Electric Current
Materials Required:
- Batteries, Wires, Steel pins, Sandpaper, Copper winding, Iron screw, Plastic straw, Wooden stick
Procedure:
- Construct an electromagnet by wrapping a copper wire around an iron screw to create a coil.
- Connect the coil to the battery using wires, ensuring a proper electrical connection.
- Use sandpaper to remove the insulation from the ends of the wires.
- Bring the electromagnet close to the steel pins and witness the magnetic attraction in action.
- Enhance the experience by utilizing a plastic straw and wooden stick to create a simple switch, allowing control over the magnet’s effects.
Instruction video on Magnetic Effects of Electric current
What's happening?
An external magnetic field can induce magnetism in ferromagnetic materials by merging and
aligning domains.
• Depending on the material, the induced magnetism may not become permanent.
• Putting iron in the centre of a solenoid can create a strong electromagnet
Working:
1. An electric current flowing through a wire produces a magnetic field.
2. Coiling the wire produces a stronger magnetic field.
3. Coiling it around a soft iron core increases the effect; raising the current or the number of coils increases it further.
4. Electromagnets are based on this simple principle.
Activity 3: Build Your Own Electromagnetic Crane
Materials Required:
- Foam board, Batteries, Wires, Copper winding, Iron screw, Steel pins
Procedure:
- Begin by designing and cutting out the shape of a crane from the foam board.
- Attach an iron screw to the bottom of the crane structure.
- Wrap the copper wire around the screw to form a coil.
- Connect the coil to the batteries using wires, ensuring a secure electrical connection.
- Activate the current flow through the coil to generate a magnetic field, enabling the crane to lift the steel pins.
- Encourage your students to experiment with different coil sizes and battery configurations to observe variations in the crane’s lifting capacity.
Instruction video on Electromagnetic Crane
Quick understanding pic on Effects of Electric Current
Conclusion:Â
With these captivating and hands-on DIY activities, your high school students will delve into the world of electric current and gain a deeper understanding of its effects. From witnessing the heating effect of electric current to experiencing the magnetic attraction and constructing an electromagnetic crane, these activities will spark curiosity and make the concepts come alive. Happy exploring and learning!
7th Grade Topic List
- Soil - Types, Profile, Suitability for Crops
- Waste Water Management
- Heat -Modes of Transfer
- Fibre to Fabric - Animal Fibres
- Electric Current & its Effects
- Light - Image & Object
- Acids, Bases & Salts;Physical & Chemical Changes
- Weather, Climate & Adaptations
- Transportation in Animals and Plants
- Wind, Storms & Cyclones
- Motion & Time
- Geometry - Lines & Angles
- Exponents & Powers
- Symmetry: Rotational Symmetry
- Triangle & its properties
- Comparing Quantities
Other crazy cool 7th Grade experiments kits!
5 million+ STEM learning kits delivered worldwide
Spark Curiosity & Discovery!
If you want to learn more about About Electroplating and electrolysis:
for Seo