Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Engineering Material

Test 1 Short Answer

QuestionAnswer
Explain why metals make good conductors of heat and electricity When they bond, the electrons in the bonding are shared among one another, forming a "sea" of electrons.
What are the 4 classes of materials? Polymers Metals Ceramics Composites
What three things are essential for diffusion to occur? Space Time Energy
Name 5 Hidden costs in the cost of a product (there are PLENTY of answers to this not listed in the answer) Labor Materials Transportation Taxes Inspections (Safety)
Why does interstitial diffusion happen faster than vacancy diffusion? The bonding of interstitials to the surrounding atoms is normally weaker and there are many more interstitial sites than vacancy sites to jump to
Sketch and Label the relationship between the 4 components of the material selection process. Processing -> Structure -> Properties -> Performance
What is a stable electron configuration and how does it influence the reactivity of an element? When all the electron orbitals are full, a stable electron configuration has been created. Examples include the Noble gases (inert as a product of there stable configurations)...because they don't seek interaction, they aren't reactive.
Draw and completely label the Energy trough. (not a drawing, but answer listed is important) Labels on diagrams: Force F Attraction w/arr. Repulsion w/arr. Attractive Force, F_A Net Force, F_N Repulsive Force, F_R r_0 interatomic separation r Potential Energy E Rep. Energy, E_R Net Energy, E_N Attr. En., E_A Bond. En., E_0
Created by: jjardor