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In an incandescent light bulb a small coil of thin tungsten metal - which is not such a good conductor of electricity as copper - resists the flow of current so much that it heats up. The thickness of the tungsten is carefully designed so that it gets hot enough to give out visible light but does not get so hot that it melts and breaks.
Another answer
Inside the bulb is a wire that goes to a piece of coiled tungsten (a heavy metallic element). This causes maximum resistance to the electricity flowing through the wire. The resistance causes the tungsten to heat up to 4,500 degrees F, so much that we see the glow as light. The glass bulb surrounding it contains an inert gas, protecting the filament from oxygen which would cause it to burn out immediately and also prevents contact with the white hot metal.
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What material makes the bulb light up?
The fillement inside the bulb makes it light up. It acts a ressistor and only lets a small bit of electricity through, therefor pressurising the energy which makes it hot and makes it glow.
What type of energy makes a light bulb glow?
An electric light bulb converts electrical energy into thermal energy which is in the form of radiated light and heat. For example, the " easy bake oven" uses a light bulb to cook the food.
How does electricity flow through a light bulb?
The atoms inside the wire of the lightbulb all have electrons which are pushed from atom to atom when the light is turned on, this is the current. When the electrons are pushed around the circuit they generate lots of heat because the wire in the bulb is so thin, this makes the wire glow white hot which creates the light.
Can a tomato glow when connected to a light bulb?
no
What three objects make a light bulb glow?
A power source (of electricity), a means to transport this power (conductors/wires), and the light bulb itself
IF a bulb travels at the speed of light and is turned on will it glow?
It could not travel at the speed of light. But hypothetically, it would glow.
What material makes the bulb light up?
The fillement inside the bulb makes it light up. It acts a ressistor and only lets a small bit of electricity through, therefor pressurising the energy which makes it hot and makes it glow.
What type of energy makes a light bulb glow?
An electric light bulb converts electrical energy into thermal energy which is in the form of radiated light and heat. For example, the " easy bake oven" uses a light bulb to cook the food.
How does electricity flow through a light bulb?
The atoms inside the wire of the lightbulb all have electrons which are pushed from atom to atom when the light is turned on, this is the current. When the electrons are pushed around the circuit they generate lots of heat because the wire in the bulb is so thin, this makes the wire glow white hot which creates the light.
Can a tomato glow when connected to a light bulb?
no
What do you need to make a light bulb glow?
Light bulbCurcitBatteryWires
What happens when a battery light the light bulb?
When the switch is turned it completes an electrical circuit. The circuit amperage flows through a high resistance filament in the bulb and it starts to glow. The bright glow from the filament and the reflector behind the bulb is what creates the flashlights beam.
How does a battery make a light bulb glow?
The flow of electrons from the battery flow through the filament in the bulb causing it to get hot and glow thus producing light.
What do gases in a light bulb do?
heat up and glow
How does a candle make a light bulb glow?
it doesn't
What light bulb should i use to make things glow in the dark?
A ultra violet light will make things glow.
How do you know that house lights are wired?
When you turn the light switch to the up (on) position, if the bulb is not burned out, the light bulb will glow.
