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Is pressure a contact or non-contact force?
Physical Pressure, as in press down or against something, is contact.
Does the nature in contact influence friction force?
Since friction means a contact force, the nature of contact will influence friction force. Smoothness of objects affect the friction force. However, as contact pressure rises, the friction does not rise.
Is elastic force a contact force or a non- contact force?
A spring force is a contact force not a non-contact force.
How does surface area and force affect pressure?
Pressure is force per area, so P = F/A where pressure is P, force is F and A is area. So Pressure is directly proportional to the force exerted on a surface. So increasing a force by a factor of 2, say, increases the pressure on the surface by 2 also.
Why is it difficutl to hold a school bag having a strap made of a thin and strong string?
for a given weight (force), reducing the contact area ie thinner strap, increases the pressure proportionally pressure (pascals) = force (newtons)/ contact area (m^2) half the area = twice the pressure weight of bag * 9.81 = downward force in newtons
Is pressure a contact or non-contact force?
Physical Pressure, as in press down or against something, is contact.
Does the nature in contact influence friction force?
Since friction means a contact force, the nature of contact will influence friction force. Smoothness of objects affect the friction force. However, as contact pressure rises, the friction does not rise.
When the contact area is doubled keeping the force acting on the body constant the pressure?
when the contact area is doubled keeping the force constant on the boy, there will be less impact on the body .
What is the pressure when a solid pushes another solid?
The pushing force divided by the area of contact.
Is elastic force a contact force or a non- contact force?
A spring force is a contact force not a non-contact force.
How does surface area and force affect pressure?
Pressure is force per area, so P = F/A where pressure is P, force is F and A is area. So Pressure is directly proportional to the force exerted on a surface. So increasing a force by a factor of 2, say, increases the pressure on the surface by 2 also.
What happens when area of contact is increased?
When area of contact increases between two objects, then the pressure applied decreases. Here is the formula: Pressure(Pascals)=Force(newtons)/area(metre2)
Is there any difference between force and pressure?
Pressure is the exertion of force upon a surface by an object, fluid, etc., in contact with it: the pressure ofearth against a wall.Force is the strength or power exerted upon an object; physical coercion; violence: to use force to open the window; to use force on a person.
Why is it difficutl to hold a school bag having a strap made of a thin and strong string?
for a given weight (force), reducing the contact area ie thinner strap, increases the pressure proportionally pressure (pascals) = force (newtons)/ contact area (m^2) half the area = twice the pressure weight of bag * 9.81 = downward force in newtons
What are the 2 kinds of forces?
The two kinds of forces are contact and non-contact. Friction and pressure would be examples of contact force. Non-contact force would include electromagnetic and gravitational force.
Why does building foundations have a large horizontal area of contact with the ground?
this is because when the area of contact between the ground and the building increases the pressure exerted by the building will be less for the same force.
When is the pressure on the ground more-when a man is lying or when a man is standing?
There is more pressure when the man is standing, since pressure is the amount of force acting on a certain area and is calculated by dividing the force by the area. When a man is standing, the area of contact with the ground is less than the area of contact when lying down. Since his weight is constant, there is more pressure when he is standing.
