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Wheels reduces the friction because to improve the speed of the machines. friction can be reduced with the help of the lubricants.
oil
Because too much friction can damage the simple machines that make up the compound machine.
You would put a lubricant - oil or grease - between the moving parts.
Friction is the act of one surface rubbing against another. To reduce friction, use something that offers a small amount of friction. Smoother substances reduce friction. A way to reduce friction is to use something which offers a small amount of friction. For example, you could use something like plastic or glass. Water, most liquids and different types of oil reduce friction. Powder, oil and grease are used in between surfaces to also reduce friction.
Wheels reduces the friction because to improve the speed of the machines. friction can be reduced with the help of the lubricants.
oil
Because some energy is expended in overcoming the friction and not applied to performing the task which the machine is meant to do.
Because too much friction can damage the simple machines that make up the compound machine.
You would put a lubricant - oil or grease - between the moving parts.
Machines heated up due to the friction caused due to their running internal parts. That's's why machines are oiled or greased to reduce friction and to produce less heat
Friction requires energy to overcome it. This causes loss of energy in the system. Loss of energy in a system, by definition, is a reduction of efficiency.
frictionIn real machines, as opposed to ideal machines, there is always friction that reduces the efficiency of the machine. Lubricants like oil can be used to reduce friction and improve efficiency.
It's to reduce friction (and thus heat) generated while the machine's parts are moving.
Friction is the act of one surface rubbing against another. To reduce friction, use something that offers a small amount of friction. Smoother substances reduce friction. A way to reduce friction is to use something which offers a small amount of friction. For example, you could use something like plastic or glass. Water, most liquids and different types of oil reduce friction. Powder, oil and grease are used in between surfaces to also reduce friction.
Oil is used as a lubricant in many large machines in order to reduce the friction between two or more moving parts.
No, sand does not reduce friction but increase friction.