No, a light bulb is not a reversible change. When the filament inside the light bulb heats up and emits light, it undergoes a chemical change and cannot be easily reversed.
The act of lighting a bulb is an irreversible change because the light and heat produced cannot easily be reversed to return the bulb to its original state. Once the electrical current passes through and illuminates the filament, the light is emitted permanently.
A light bulb is not a change in and of itself but the process by which it gives off light is physical. While an electric current causes a given component of the bulb to glow (it may be the filament of an incandescent bulb or the vapor in a fluorescent one), but that substance does not change its chemical identity.
No.
Yes, evaporation is the changing of matter from a liquid to a gas. You can reverse this process through condensation which is the change from a gas to a liquid.
Filtering is a reversible change because it can be undone by simply removing the filter and allowing the substances to mix again.
No, the glowing of a light bulb is a reversible change because it can be turned off by disconnecting the power source. The light bulb will stop glowing once the electrical current is interrupted.
Reversible: the light goes on, producing illumination; it goes off and it's as dark as it was. Irreversible: light causes a plant to grow which is not immediately reversed when the light is turned off
The act of lighting a bulb is an irreversible change because the light and heat produced cannot easily be reversed to return the bulb to its original state. Once the electrical current passes through and illuminates the filament, the light is emitted permanently.
The lightning of a bulb is a physical change because the transformation is reversible - the electricity passing through the filament causes it to heat up and emit light, but the filament itself remains the same material. A chemical change, on the other hand, involves a change in the chemical composition of the substance, which does not occur in this case.
how can i change bulb
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How do you change a fog light bulb on a 2004 VW Passat?
None. You vill change zee light bulb. Ve haf vays to MAKE you change zee light bulb!
Which bulb?
Define "light bulb"
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