Conservation of Electricity

Select the correct formulas.

• V = IR

• P = Et

• P = E/t

• P = VI

• P = IR

Select the true reasons why we should use less electricity.

• Singapore does not have own fuel resources (oil and natural gas) to generate electricity.

• There is unlimited resources of fuels (oil and natural gas) in the world.

• The generation of electricity can contribute to air pollution.

• The generation of electricity can cause global warming, which results in the Earth's temperature to drop.

Which of the following is NOT a result of global warming?

• More low-lying areas will submerge due rising sea-levels.

• More Arctic animals will extinct due to loss of their habitats.

• More buildings will get corroded due to more rainfall.

• More deserts will be formed due to increasing Earth's temperature.

Fluorescent lamps uses less energy than filament lamps.

• TRUE

• FALSE

Filament bulbs use less electricity than LED (Light Emitting Diodes) bulbs.

• TRUE

• FALSE

Use air-conditioners instead of fans to save electricity.

• TRUE

• FALSE

Setting the air-conditioner at 26 ^oC allows you to save electricity than setting it at 21 ^oC.

• TRUE

• FALSE

A refrigerator with two ticks allow you to save electricity compared to one with four ticks.

• TRUE

• FALSE

Suggest other ways that you can save electricity.

Overloading of power sockets can lead to electric shocks.

• TRUE

• FALSE