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What is the purpose of wattage amount?
Answer
1000 watts motor definitely run faster than a 500 watt motor!
But take care of 1 thing, it draws more power when running at maximum speed, thereby reducing the distance you can travel.
1000 watts motor definitely run faster than a 500 watt motor!
But take care of 1 thing, it draws more power when running at maximum speed, thereby reducing the distance you can travel.
How much energy is a lot? Watts/joules scale help?
Timothy
I basically have no sense of scale when it comes to watts/measuring power. Can anyone maybe tell me how much power is a little and a lot with examples? Like, how much watts a lighbulb uses in a day and how much... something that uses a lot of watts use.
This all started with me wondering how much power the human body uses so I decided to look up how much a calorie equals in joules/watts (turns out it's average calories = 1500 = 6,276 joules) and now that I have how much energy it uses... I have no idea if that's a little, average or a lot.
Answer
To give an idea of the scale...
well, the power requirements of a lightbulb are printed on it - usually somewhere between 5 and 100 Watts.
The human body at rest will dissipate around 500 Watts of heat.
Solar radiation will deliver around 1kW (=1000 Watts) per square meter.
Riding a bike will usually take between 50 and 200 Watts, athletes will go up to 500 Watts.
An electric socket (in Europe) will provide a maximum of around 3000 Watts (US 1500 Watts).
1 Joule = 1 Watt*1 Second
And don't get confused: nutritional content of food is usually expressed in kcal or kJ (k = kilo = 1000), although most people when talking just omit the 'kilo' part of it. So average food consumption (for a child) per day would be 1500 kcal = 1.500.000 cal.
To give an idea of the scale...
well, the power requirements of a lightbulb are printed on it - usually somewhere between 5 and 100 Watts.
The human body at rest will dissipate around 500 Watts of heat.
Solar radiation will deliver around 1kW (=1000 Watts) per square meter.
Riding a bike will usually take between 50 and 200 Watts, athletes will go up to 500 Watts.
An electric socket (in Europe) will provide a maximum of around 3000 Watts (US 1500 Watts).
1 Joule = 1 Watt*1 Second
And don't get confused: nutritional content of food is usually expressed in kcal or kJ (k = kilo = 1000), although most people when talking just omit the 'kilo' part of it. So average food consumption (for a child) per day would be 1500 kcal = 1.500.000 cal.
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