Question
A lubricant _____.
Hint:
When lubricant is applied between the moving parts of a machine, a thin layer is formed there and moving surfaces do not directly rub against each other
The correct answer is: Reduces friction
- Friction is a type of contact force.
- A rough surface will have more friction because on the rough surface there will be more irregularities. They will cause interlocking which in turn creates more frictional force. For a smooth surface, irregularities and interlocking is less and hence has very less friction.
- When lubricant is applied between the moving parts of a machine, a thin layer is formed there and moving surfaces do not directly rub against each other. Interlocking of irregularities is avoided to a great extent and movement becomes smooth. Thus friction is reduced.
Related Questions to study
If we spill oil on the floor, the friction of the floor will
If we spill oil on the floor, the friction of the floor will
A toy with wheels released with the same initial speed will travel farthest on a ______.
A toy with wheels released with the same initial speed will travel farthest on a ______.
Which of the following is not a smooth surface?
Which of the following is not a smooth surface?
Which of these affect the force of friction?
Which of these affect the force of friction?
SI Unit to measure friction is
SI Unit to measure friction is
“More is the pressure exerted on the surface, more will be the friction.”
“More is the pressure exerted on the surface, more will be the friction.”
A car is turning on a turn and suddenly a pool of water appears on the road. Which diagram best shows how the pool of water will affect the path of the car after the car goes through it.
A car is turning on a turn and suddenly a pool of water appears on the road. Which diagram best shows how the pool of water will affect the path of the car after the car goes through it.
Sameer is riding his mountain bike. Where does he require less friction?
Sameer is riding his mountain bike. Where does he require less friction?
Smrita is climbing a mountain. How much friction does she need?
Smrita is climbing a mountain. How much friction does she need?
Jack is going skiing. How much friction does he need?
Jack is going skiing. How much friction does he need?
How does friction affect speed?
Friction is the force opposing one solid object's movement over another. Four categories of friction exist fluid friction, rolling friction, sliding friction, and static friction.
¶The frictional force keeps our feet planted on the ground when we walk on or on the floor. As a result, we frequently slip on icy or slippery surfaces because there is less friction.
¶According to scientists, friction is caused by the interactions of tiny bumps on surfaces as they rub against each other. The bumps on each surface bend and exert force on each other, making it difficult for the surfaces to slip over each other.
How does friction affect speed?
Friction is the force opposing one solid object's movement over another. Four categories of friction exist fluid friction, rolling friction, sliding friction, and static friction.
¶The frictional force keeps our feet planted on the ground when we walk on or on the floor. As a result, we frequently slip on icy or slippery surfaces because there is less friction.
¶According to scientists, friction is caused by the interactions of tiny bumps on surfaces as they rub against each other. The bumps on each surface bend and exert force on each other, making it difficult for the surfaces to slip over each other.
