**Moderators:** MelissaB, kgudger, Ray Trent, Moderators

2 posts
• Page **1** of **1**

The equation to find stress is force/area . Stress can be measured as Pascals. I don't know if i should do any convertions. From mm to meters. From Grams to kilograms?

- alondra011
**Posts:**10**Joined:**Wed Oct 24, 2012 2:37 pm**Occupation:**Student**Project Question:**How does chemical lighting hair treatments affect the elasticity of hair?**Project Due Date:**11/20/12**Project Status:**I am just starting

Alondra011,

Thank you for your question. Unit agreement is very important when making calculations. A pascal (Pa) is the SI unit for pressure or stress. So force, measured in newtons (N), would be kilogram meters per second per second (kg*m/s^2) and area would be in square meters (m^2). So a pascal would be (kg/(m*s^2)).

So, the short answer is yes...you need to ensure you convert any measurements to these units.

Thank you for your question. Unit agreement is very important when making calculations. A pascal (Pa) is the SI unit for pressure or stress. So force, measured in newtons (N), would be kilogram meters per second per second (kg*m/s^2) and area would be in square meters (m^2). So a pascal would be (kg/(m*s^2)).

So, the short answer is yes...you need to ensure you convert any measurements to these units.

I hope this helps.

theborg

----------

"As the circle of light increases, so does the circumference of darkness around it."

~ Albert Einstein

theborg

----------

"As the circle of light increases, so does the circumference of darkness around it."

~ Albert Einstein

- theborg
- Moderator
**Posts:**224**Joined:**Mon Oct 03, 2011 12:26 pm**Occupation:**US Air Force Space & Missile Operations**Project Question:**"To explain all nature is too difficult a task for any one man. 'Tis much better to do a little with certainty and leave the rest for others that come after you, than to explain all things by conjecture without making sure of anything." - Sir Isaac Newton**Project Due Date:**N/A**Project Status:**Not applicable

2 posts
• Page **1** of **1**

Return to Grades 9-12: Physical Science

Users browsing this forum: No registered users and 4 guests