Since there is no friction due to the absence of air in space, a satellite does not need to be streamlined.?
Also, with no air friction to oppose it's movement, a satellite will continue to move without the need of an engine to provide a force.?
??Read the above paragraph and answer the following questions.?
What is friction?? ? ? ? ? ? ? (1)?
Write one? disadvantage and?
??one advantage of friction.? ? ? ? (1)?
What form of energy does friction always produced??
What is the advantage of a body having streamlined shape??
Do fluids exert friction on the bodies moving through them?Write the SI unit of friction. (1)
Dear Student,
1.Friction is a force that opposes the relative motion between two surfaces in contact. It acts on both the surfaces.
2.Friction causes wear and tear of an object.
3. Friction between our fingers and the objects help us to hold things.
4. Friction produces heat energy.
5. Streamlined bodies reduce air resistance. so they help to reduce friction.
6. Yes.Fluids exert friction . The frictional force exerted by fluids is called drag or fluid friction.
7. As friction is a force and the S.I. unit of force is Newton, the S.I. unit of friction is Newton.
Regards
1.Friction is a force that opposes the relative motion between two surfaces in contact. It acts on both the surfaces.
2.Friction causes wear and tear of an object.
3. Friction between our fingers and the objects help us to hold things.
4. Friction produces heat energy.
5. Streamlined bodies reduce air resistance. so they help to reduce friction.
6. Yes.Fluids exert friction . The frictional force exerted by fluids is called drag or fluid friction.
7. As friction is a force and the S.I. unit of force is Newton, the S.I. unit of friction is Newton.
Regards