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friction in machines is undesirable becouse becouse the materials used to make them are always in griding form. ALLY S. MUBA-ngarambe
Maryjane Konopelski
Machines with moving parts give off heat because friction between the moving parts generates thermal energy. This friction causes the parts to rub against each other, converting mechanical energy into heat energy. Additionally, the operation of motors and other components in the machine can also produce heat as a byproduct of their function.
Wiki User
∙ 14y agoComputers run on electricity. The metals and semiconductors out of which the computer components are made all have a slight resistance to the flow of the electric current and this causes them to heat up in use.
Wiki User
∙ 11y agoDue to friction
Wiki User
∙ 10y agofriction
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What is the term for extra heat given off by machines?
The term for extra heat given off by machines is "waste heat." It is the energy that is not used for the intended purpose of the machine and is instead released into the surrounding environment as heat.
How do you make a smokebomb?
four parts KNO3 to six parts suger melt and ster over a low heat till it goes brown then pack it in to a container. when lit it should give off a cloud of brown smoke (If you add colouring to the mixture the colour of the smoke will be that colour).
Does covalent bonds give water a low heat capacity?
No, covalent bonds do not directly affect water's heat capacity. Water's high heat capacity is due to its hydrogen bonds, which allow for a large amount of heat to be absorbed or released without causing a large temperature change.
What are the objectives of lubricants?
1. it reduces friction b/w the surfaces 2. it protects the parts from wearing 3. it takes away heat from the working area 4. it provide a sealing form dust or any foreign particle entering the system 5. it takes away wear out particles ( chips) away form working zone.
What the molecules are doing in heat Conduction?
In heat conduction, molecules transfer kinetic energy to neighboring molecules through collisions. As a result, the faster-moving molecules transfer energy to slower-moving molecules, leading to an overall transfer of heat energy through the material. The molecules vibrate and move more rapidly as they gain energy, increasing the temperature of the material.
Why machines are applied with grease?
It's to reduce friction (and thus heat) generated while the machine's parts are moving.
Why are transformer more efficient that rotating electric machines?
Because the electrical parts of a transformer do not move / rotate.
Why is it important to reduce friction on moving parts of machinery?
Friction creates heat. Heat could melt machine parts if it becomes too high. That's why many machines use lubricants while they're drilling or shaping metal.
What are some of the ways energy is lost in machines?
Energy can be lost in machines through friction between moving parts, air resistance, electrical resistance in wires, and heat dissipation. These losses result in decreased efficiency and can lead to wasted energy in the form of heat.
Why are tools and machines coated with greases?
The grease is there to lessen friction between two metal parts. Without grease the moving parts would heat up due to the friction.
What are disadvantages of heat produced by friction in machines?
energy used for the machine will get lost as heat .machine parts will get worn out.
Why adding oil to the moving parts of a machine can increase its efficiency?
Adding oil to the moving parts of machines can do that because it makes it smoother and takes the rust off of it.
What machines are affected by friction?
All machines that have moving parts are affected by friction. Friction occurs when two surfaces rub against each other, which can cause wear and tear on the machine's components over time. In some cases, friction can reduce the efficiency of a machine by converting some of the energy into heat.
What machine has the most moving parts?
Most man- made machines have relatively low efficiency. For instance, a car or aeroplane is very noisy and will get very hot. This noise and heat is wasted energy and makes up a significant proportion of the total energy (fuel) input.
Why are machines oiled?
Machines are oiled to reduce friction between moving parts, which helps to prevent wear and tear on the components and prolong the machine's lifespan. Oil also helps to dissipate heat generated by friction and keeps the machine running smoothly.
What two parts of an animal give off the most heat?
The two parts of an animal that give off the most heat are the core body organs, such as the heart and liver, and the brain. These organs are metabolically active and require a lot of energy, which is released as heat during their functioning.
Does Lubrication prevents damage from heat and friction and keeps the moving parts operating efficiently?
Yes, lubrication helps reduce friction between moving parts, which can prevent damage from heat generated by friction. It also helps to keep the parts operating efficiently by reducing wear and tear, ensuring smoother operation.
