Exercise A: Am I Positive or Negative? Direction: Study comic stripy in Figure 1 and comply a table similar to Table 1.
Table 1. Lists of Materials and Their Charge Interaction Based on Triboelectric Series
Materials Rubbed Together
Example: Hair and paper
1. Start here: Glass and copper
2. Steel and copper
3. Hair and polyester
4. Rubber and skin
5. Vinyl and wood
6. Wool and silk
7. Polyethylene and cotton
8. Vinyl and wool
9. Cotton and paper
Materials that would lose electrons
1. copper
2. copper
3. polyester
4. rubber
5. vinyl
6.
7. polyethylene
8. vinyl
9.
Charge of materials after losing electrons
1.–
2.–
3.–
4.–
5.–
6.
7.–
8.–
9.
Materials that would gain electrons
hair
1. glass
2.
3. hair
4. skin
5.
6. silk
7.
8.
9.
Charge of materials after gaining electrons
+
1.+
2.
3.+
4.+
5.
6.+
7.
8.
9.
ɪ ɴᴇᴇᴅ ᴀ ʟɪᴛᴛʟᴇ ʜᴇʟᴘ ʜᴇʀᴇ ᴘʟs ᴀɴsᴡᴇʀ ᴛʜɪs ᴄᴏʀʀᴇᴄᴛʟʏ,ɪ'ʟʟ ʙʀᴀɪɴʟɪᴇsᴛ ᴋᴏɴɢ sɪɴᴏ ᴍᴀᴋᴀᴋᴀ ᴀɴsᴡᴇʀ ɴɪᴛᴏ ᴄᴏʀʀᴇᴄᴛʟʏ
Nonsense=Report
Incomplete=Report
Incorrect=Report
Table 1. Lists of Materials and Their Charge Interaction Based on Triboelectric Series
Materials Rubbed Together
Example: Hair and paper
1. Start here: Glass and copper
2. Steel and copper
3. Hair and polyester
4. Rubber and skin
5. Vinyl and wood
6. Wool and silk
7. Polyethylene and cotton
8. Vinyl and wool
9. Cotton and paper
Materials that would lose electrons
1. copper
2. copper
3. polyester
4. rubber
5. vinyl
6.
7. polyethylene
8. vinyl
9.
Charge of materials after losing electrons
1.–
2.–
3.–
4.–
5.–
6.
7.–
8.–
9.
Materials that would gain electrons
hair
1. glass
2.
3. hair
4. skin
5.
6. silk
7.
8.
9.
Charge of materials after gaining electrons
+
1.+
2.
3.+
4.+
5.
6.+
7.
8.
9.
ɪ ɴᴇᴇᴅ ᴀ ʟɪᴛᴛʟᴇ ʜᴇʟᴘ ʜᴇʀᴇ ᴘʟs ᴀɴsᴡᴇʀ ᴛʜɪs ᴄᴏʀʀᴇᴄᴛʟʏ,ɪ'ʟʟ ʙʀᴀɪɴʟɪᴇsᴛ ᴋᴏɴɢ sɪɴᴏ ᴍᴀᴋᴀᴋᴀ ᴀɴsᴡᴇʀ ɴɪᴛᴏ ᴄᴏʀʀᴇᴄᴛʟʏ
Nonsense=Report
Incomplete=Report
Incorrect=Report
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