There are certain features which all electrical devices have in common.
1. They all need an electric circuit to work. When we plug the device into a power point (or put in the batteries) and switch it ON, the potential difference (voltage) provided by the power supply provides energy to electrical charges and they start moving
2. It is the moving charges (currents) that allow the device to do the job it was designed for. Inside the device the electrical energy of the charges is transformed into some other form of energy.
You have to be responsible when using electrical devices and it’s extremely important to be able to identify and prevent dangerous situations, as well as know what to do in an emergency. Here are some tips:
- If the cord or plug of an electrical device is damaged or frayed, switch it off at the power if it’s on and notify an adult
- If you get water on an electrical device by spilling something or dropping it, the first thing to do is switch off the power and unplug before picking it up
More tips can be found in the Safety Considerations section.
Consider the electrical devices you use each day. Our society depends on electricity. Using it more efficiently will mean that the impact on our natural resources can be reduced.
By being sensible around your home and school you can help your parents save money as well as help the environment!
What can you do?
- When you’re feeling cold, put on a jumper instead of turning the heater on straight away
- If the air conditioner is on, keep doors and windows closed to keep the cool air in
- Your appliances can be using energy even when you’re not using them. Make sure you shut down your computer or laptop after you’ve finished using it
- Turn off appliances when they are not in use or not needed
- Help mum or dad hang out the washing on the line instead of using the dryer