A watt is a measurement of power equal to one joule of energy per second.
If you want to stay with SI units, use mW (milliwatts), uW (microwatts), etc. (The "u" in uW should actually be the Greek letter "mu").
voltage
because it has more watts
It is smaller than a kilonewton.
It is probably a 60 watt bulb (believe it or not). Bulbs are rated in watts. A 100 watt bulb is brighter and consumes more power than a 60 watt bulb
A microsecond is smaller than one second.
James Watt
nano watt
Yes
Yes, if the bulb is incandescent, and you change from a higher wattage bulb to a 25 watt bulb the future growth will be smaller.
A 40 watt bulb is dimmer than a 100 watt bulb.
because it has more watts
true
horsepower
Smaller, Mars is about half the size of Earth
yes, 4x more
Original answer: Because it gives off more power. Updated answer: In general, because the 100-watt bulb produces more total light (lumens) because it also consumes more power than the 60-watt bulb. However, a 60-watt can produce more lumens than a 100-watt bulb, depending on the types of bulbs in question.
it can get smaller than an atom
It is smaller than a kilonewton.