I think that a screwdriver with a light source would be a marketable product. It would appeal to a wide range of professions. E.g. Joiners/carpenters.
No, they are usually phillips.
The sun light source is used for like ships and when we need to see in the house.
What you need is a light source and an opaque object to block the light.
A lamp
Take the cover off the dome light with a flat head screwdriver. Insert the screwdriver carefully into the small indet in the back of the dome light. pry carefully and the cover will pop off. Pull the bulb out and snapo the new one in. For side bulbs you will need to use a Phillips screwdriver and remover the dome light from the ceiling after the cover is removed.
To light a light bulb you need to connect to a source of electricity like a battery or an electrical outlet.
We need light in photosynthesis as Light provides the energy source. The process is based on light. The plants use light to convert energy. The same reason that we need air to breath.
Generically, a power source (usually batteries), a light source (usually a light bulb), a switch to turn it on and off, and wiring of some sort to connect the energy source to the light source. Theoretically this is the minimum you would need to build a "flashlight".
If you want to change the brake light, you will need a Torx screwdriver. You will also have to open your trunk and remove the lens cover assembly.
In general a torx or so called 'star screwdriver' is used. In other instances you might only need a standard or philip's head screwdriver. The process is relatively straightforward so long as you have a user manual.
We need an source of light, an opaque object blocking the path of light, a screen behind the opaque object.
Well I'm sure he knows what light is, so they need to understand what a source is. You tell him/her that a source, is where things come from: embellish however seems good. And of course, a light source, is where light comes from. Some examples: the sun, a light bulb or LED (light emitting diode), or anything that emits photons.