Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Mat Sci Quiz 1

QuestionAnswer
1) The tetrahedron emphasizes the four aspects including: (a) theory, application, evaluation, implementation (b) energy, load, speed, quality (c) structure, properties, processing, and performance C
2) Which of the following statements regarding metals is true? (a) A metal is usually composed of two or more individual materials. (b) Metals are relatively stiff, strong, and ductile. (d) Most metals have relatively low density. B
3) Which of the following statements regarding ceramics is true? (b) Ceramics are relatively stiff, strong, and ductile. (c) In general, ceramics are brittle and highly susceptible to fracture. (d) Most ceramics are thermal and electrical conducting. C
4) FeO is a: (a) metal (b) polymer (c) ceramic (d) composite C
5) Which of the following statements regarding polymers is true? (c) In general, polymers are brittle and highly susceptible to fracture. (d) In general, polymers have very long molecular structures D
6) Natural rubber is a (a) metal (b) polymer (c) ceramic (d) composite B
7) Which of the following statements regarding composites is true? (a) A composite is usually composed of two or more individual materials. (b) Composites are relatively stiff, strong, and ductile. (c) In general, composites are brittle and highly A
8) Concrete is a (a) metal (b) polymer (c) ceramic (d) composite D
9) A biomaterial must be (a) conducting (b) brittle (c) biocompatible (d) an insulator C
10) In general, which of the following materials has the lowest density? (a) metals (b) ceramics (c) polymers C
1) In general, ionic bonding exists in a (a) metal (b) ceramic (c) polymer B
2) In NaCl, the bond formed between sodium and the chlorine atom is (a) covalent bond (b) ionic bond (c) metallic bond (d) secondary bond B
3) Covalent bond is (a) directional (b) nondirectional A
) The bonds within the molecular chains of the following polymer are (a) covalent bonds (b) ionic bonds A
5) Metallic bond is (a) directional (b) nondirectional B
6) Van der Waals bond is (a) directional (b) nondirectional A
7) In general, Van der Waals bonding exists in a (a) metal (b) ceramic (c) polymer C
8) The bonds between the molecular chains of the following polymer are (a) covalent bonds (b) ionic bonds (c) metallic bonds (d) secondary bonds D
10) Which of the following bonding forces is the lowest? (a) ionic bond (b) covalent bond (c) metallic bond (d) Van der Waals force D
1) For crystalline materials, (a) atoms pack in periodic 3D arrays. (b) atoms have no periodic packing. A
2) For amorphous materials, (a) atoms pack in periodic 3D arrays. (b) atoms have no periodic packing. B
3) Noncrystalline materials are usually obtained with (a) rapid cooling and complex structures. (b) slow cooling and simple structures. A
6) How many atoms are in the HCP unit cell? (a) 1 (b) 2 (c) 4 (d) 6 (e) 17 D
7) The Coordination number in the HCP unit cell is (a) 4 (b) 8 (c) 12 C
8) The following metals have HCP crystal structure, except (a) Mg (b) Ti (c) Zn (d) Cd (e) Fe E
10) How many atoms are in the FCC unit cell? (a) 1 (b) 2 (c) 4 (d) 6 (e) 17 C
11) The coordination number in the FCC unit cell is (a) 4 (b) 8 (c)12 C
12) Which of the following metals has FCC crystal structure? (a) Mg (b) Ti (c) Zn (d) Al (e) Fe at room temperature D
14) How many atoms are in the BCC unit cell? (a) 1 (b) 2 (c) 4 (d) 6 (e) 17 B
15) The coordination number in the BCC unit cell is (a) 4 (b) 8 (c)12 B
16) What is the Atomic Packing Factor (APF) for the BCC unit cell? (Assuming the radius of atom R, the length of the side of the unit cell a.) (a) 1.0 (b) 0.74 (c) 0.68 (d) 0.52 C
20) If the ratio of cation to anion in a ceramic is in the range of 0.414 - 0.732, it would be similar to which of the following crystalline structure (a) ZnS (b) NaCl (c) CsCl B
21) Diamond is the hardest material in the world. In the structure, each carbon atom is bonded to four other carbon atoms. The bonds are totally (a) covalent bonds (b) ionic bonds (c) metallic bonds (d) secondary bonds (Van der Waals) A
22) Graphite is composed of layers as shown below. Layers slide easily over one another making graphite a good lubricant. What bonds are between layers? (a) covalent bonds (b) ionic bonds (c) metallic bonds (d) secondary bonds (Van der Waals bond) D
Created by: h-charles
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards