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Why do slippery fluids such as oil reduce sliding friction?
We can reduce friction by oiling ("lubricating") the surfaces. This means that the surfaces no longer rub directly on each other, but slide past on a layer of oil. It's now much easier to move them.
Explain why coconut oil does not mix in water?
because the molecules in coconut oil are not close and it is a viscous liquid
What type of bacteria can break down oil?
Bacteria that can digest oil clean up environmental pollutants like
Can you use aluminium foil in the bottom of a pan to prevent the food from getting stick while cooking?
Yes, but the food then will stick to the aluminum foil. Alternative, one may brush the cooking pan with oil or use a non-stick spray. Depending on the type of cooking being done, baking pans may be lined with waxed paper or parchment which may also be sprayed or brushed with oil.
Explain fractional distillation and how it is used in refining oil?
Fractional distillation is a technique used to separate liquids with different boiling points. It is used in refining oil, whereby different types of oils are separated according to their different boiling points.
Why did people use oil?
Oil is used to lubricate two moving metal surfaces, that would be damaged if there was no oil to prevent friction damaging the two surfaces.
How can you reduce sliding friction between 2 surfaces?
oil it
How does oil between machine reduce friction?
The oil helps slick the two surfaces so that the molecular surfaces become easier to slide on with less friction. Julia Blander :P
Describe two ways to change the frictional force between two sold surfaces?
1 . By polishing the surfaces in contact 2 . By lubricating the surfaces in contact with oil or grease .
Explain how friction reduces the efficiency of machines?
one way to reduce friction between two surfaces is to add oil. oil fills in the gaps between surfaces , and keeps many of the high spots from making contact. because there are fewer contact points between the surfaces, the force of friction is reduced. more of the input work then is converted to output work by the machine.
How does oil and grease reduce the amount of friction?
Oil and grease are viscose (thick) liquids. They cling to the surfaces of metals easily, which allows the surfaces to 'glide' past each other without rubbing.
How does oil between Machines parts reduce friction?
The oil helps slick the two surfaces so that the molecular surfaces become easier to slide on with less friction. Julia Blander :P
What produces more heat rough surface and a smooth or surface two smooth surfaces or two rough surfaces or two surfaces with oil between them?
two rough ones - there will be more friction xx
How do you change the frictional force between two solid surfaces?
we can reduce it by providing lubrication means using oil between 2 surfaces as lubricant.
Why do slippery fluids such as oil reduce sliding friction?
We can reduce friction by oiling ("lubricating") the surfaces. This means that the surfaces no longer rub directly on each other, but slide past on a layer of oil. It's now much easier to move them.
What effect does rapeseed have on oil paints?
I have painted rapeseed oil on some surfaces painted with oil paint and cannot detect any change after it's wiped off.
If you paint high gloss acrylic over high gloss oil on the trim will it peel off?
the high gloss acrylic would bead up and not give you an even application over the oil based
