What is ideal effort force?
In ideal machines, where there is no friction and the input work and output work are the same, (Effort Force)(Effort Distance)=(Resistance Force)(Resistance Distance. The effort is the work that you do. It is the amount of force you use times the distance over which you use it.
What is the ideal effort force of a lever?
If we ignore any friction that occurs where the lever pivots over the fulcrum, this is an ideal machine. For ideal machines, effort work always equals resistance work.
What is another name for output force?
Work-Force Terms
| A | B |
|---|---|
| effort force | force applied to a simple machine |
| resistance force | force applied by the simple machine |
| input force | another name for effort force |
| output force | another name for resistance force |
Can an appliance be 100% efficient?
Appliances can be more than 100% efficient, e.g. heat pumps. Transfer of heat from one source to another can be very efficient. In fact, the first law of thermodynamics says that the internal energy of a system can be transferred as heat of there is no work done through compression, expansion etc.
Can an electrical device be 100% efficient?
Heat, sound, and mechanical energy are all unwanted byproducts. So if you put in 100 watts of power and get 50 watts of light the system is 100% efficient. There is a principle called “unity efficiency” that can allow you to produce MORE than 100% of the input.
Can heaters be 100% efficient?
Electric resistance heating is 100% energy efficient in the sense that all the incoming electric energy is converted to heat. However, most electricity is produced from coal, gas, or oil generators that convert only about 30% of the fuel’s energy into electricity.
How can you contribute to promote energy conversion?
Five tips to boost energy efficiency
- Electrical Appliances. The use of energy efficient appliances means less energy consumption and therefore energy savings.
- Heating and air conditioning. Energy consumption.
- Water.
- Lighting.
- Transportation.