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No, stress is not a dimensionless quantity. By application of a simple equation of stress, axial stress, we can determine the primary dimensions (Length, Time, Mass, Etc.) of stress.
Stress (sigma) = Force (F)/Area (A)
Force has the primary dimensions of: (Mass*Length)/Time^2
Area has the primary dimensions of: Length^2
Therefore we can determine that Stress has the primary dimensions of: Mass/(Length*Time^2)
Common units include: Newtons (SI), psi (pounds mass per square inch)
You may have confused stress with strain. Strain has primary dimensions of Length/Length and therefore it is often expressed without any attached units.
What else can I help you with?
Can a quantity have units but still be dimensionless?
No. "Dimensionless" means there are NO units involved.
Which of the following is dimensionless quantity a. stress b. strain c. momentum d. force?
Strain is dimensionless quantity because strain is the ratio of the same quantities like change in length/original length,,change in volume/original volume. e.g tensile strain=(change in length)/(original length)=m/m (S.I unit) so its a dimensionless quantity.
Does a dimensionless quantity have a unit?
No, a dimensionless quantity does not have a unit because it represents a pure number without any physical dimension. Examples of dimensionless quantities include ratios, proportions, and mathematical constants.
Can a quantity be dimensionless and have no units?
Yes, a dimensionless quantity is a quantity that does not have any physical dimensions or units. It is a pure number or ratio that represents a comparison between two quantities. Examples of dimensionless quantities include angles, ratios, and pure numbers like pi.
Can a quantity have unit and still be diamensionless?
No, a quantity cannot have units and still be dimensionless. The dimensions of a quantity are determined by its units, so if a quantity has units, it has dimensions. Dimensionless quantities are those without any units.
Which dimensionless quantity has unit?
If a quantity is "dimensionless", that means it has no units, and it's just a number.
Can a quantity have units but still be dimensionless?
No. "Dimensionless" means there are NO units involved.
Is specific weight is a dimensionless quantity?
energy/mass example: calories/gram
What are dimensionless numbers?
the dimensionless numbers have the definition as that of dimensionless groups, and have all the properties which dimensionless groups have.
Which of the following is dimensionless quantity a. stress b. strain c. momentum d. force?
Strain is dimensionless quantity because strain is the ratio of the same quantities like change in length/original length,,change in volume/original volume. e.g tensile strain=(change in length)/(original length)=m/m (S.I unit) so its a dimensionless quantity.
What is the rule of dimensionless quantity?
infinity
Does a dimensionless quantity have a unit?
No, a dimensionless quantity does not have a unit because it represents a pure number without any physical dimension. Examples of dimensionless quantities include ratios, proportions, and mathematical constants.
Can a quantity have constant value and be dimensionless?
Yes. Conversion factors will generally be dimensionless constants.
Can a quantity be dimensionless and have no units?
Yes, a dimensionless quantity is a quantity that does not have any physical dimensions or units. It is a pure number or ratio that represents a comparison between two quantities. Examples of dimensionless quantities include angles, ratios, and pure numbers like pi.
Can a quantity have unit and still be diamensionless?
No, a quantity cannot have units and still be dimensionless. The dimensions of a quantity are determined by its units, so if a quantity has units, it has dimensions. Dimensionless quantities are those without any units.
Is the magnitude of a vector quantity a dimensionless number?
Yes, the magnitude of a vector is a scalar.
Can a quantity have units but still be dimension less give example?
Yes, a quantity can have units but still be dimensionless if the units cancel out when they are raised to the power of 0. For example, specific volume (volume per mass) has units of m^3/kg, but when you divide volume by mass, the units cancel out and it becomes dimensionless.
