two HVAC technician are discussing units of energy.Technician A says that a BTU is defined as the work performed by a force of 1 neton[N] moving and object over a distance of 1 meter[M].Technician B says that that if you have a 60 watt light bulb that has been on for 6 hours,that light has consumed 360 watt-hours of energy.which one of the following statements is correct?
Tech. B is correct.
Well, Technician A seems to be a bit confused. A BTU (British Thermal Unit) is actually defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It's not about the work performed by a force of one Newton moving an object over a distance of one meter. So, I'm afraid Technician A needs to hit the books again and get his facts straight.
On the other hand, Technician B is on the right track. If you have a 60-watt light bulb that has been on for 6 hours, it would consume a total of 360 watt-hours of energy. So, kudos to Technician B for knowing his stuff!
In summary, Technician B wins this round with a bit more lightbulb knowledge and a brighter idea of energy consumption.
Technician B is correct.
Technician A's statement is incorrect. A BTU (British Thermal Unit) is defined as the amount of energy required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. It is not defined as the work performed by a force of 1 Newton moving an object over a distance of 1 meter.
Technician B's statement is correct. The consumption of energy by a 60-watt light bulb can be calculated by multiplying the power (in watts) by the time (in hours). So, 60 watts x 6 hours = 360 watt-hours.
Technician B is correct.
To explain why, let's break down both statements:
Technician A states that a BTU (British Thermal Unit) is defined as the work performed by a force of 1 Newton moving an object over a distance of 1 meter. While this definition is partially correct, it is not the complete definition of a BTU. A BTU is actually defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. So, despite Technician A's statement containing elements of work and force, it does not accurately define what a BTU is.
Technician B states that if a 60-watt light bulb has been on for 6 hours, it has consumed 360 watt-hours of energy. This statement is correct. To understand why, we need to understand the relationship between power (in watts) and energy (in watt-hours). Power is the rate at which energy is consumed or produced. In this case, the light bulb has a power rating of 60 watts. Given that it has been on for 6 hours, we can calculate the energy consumed by multiplying the power by the time: 60 watts * 6 hours = 360 watt-hours. Therefore, Technician B's statement accurately describes the energy consumption of the light bulb.
Based on this explanation, the correct answer is that Technician B's statement is correct.