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Usually there will be small curves and bumps on the surface of bodies sliding over each other. These cause friction. Though we make the surface so smooth there will be some to provide smaller frictional force
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When is friction generated?
Anytime that the surface of two materials are in contact. There does not have to be motion to have friction.
What are two types of energy generated due to friction?
thermal and kinetic
How do we use frictions to generate power and heat?
friction is generated when two objects are rubbing
What happen when we rub two blocks of ice?
The heat generated by the friction will cause them to melt.
Does applying brakes on a bike cause friction?
Yes, and the heat generated is the converted momentum of slowing down.
When is friction generated?
Anytime that the surface of two materials are in contact. There does not have to be motion to have friction.
What energy is it when you rub an object on any object?
Heat - generated by friction.
What are two types of energy generated due to friction?
thermal and kinetic
What form of heat is generated when one object rubs against another object?
Friction
How do we use frictions to generate power and heat?
friction is generated when two objects are rubbing
Why rubbing your hands make you feel warmer?
The friction generated by your hands creates heat.
Why is a spark produced when two stones collide?
When the stones collide, they generate friction which in turn generates heat. The greater the friction, the more heat that is generated.
Why frictional electricity is known as static electricity?
Becuase static electricity is generated by rubbing or by friction.
How does the presence of a sac containing fluid influence the amount of fiction generated?
It avoids the friction between structures
How does a human generate electricity?
when friction is generated. for example the rug. when u rub it against it, it generates electricity.
Why is the energy generated from friction difficult to recover?
It is radiated as heat energy which is quickly dissipated to the surrounding environment.
What happen when we rub two blocks of ice?
The heat generated by the friction will cause them to melt.
