1. Pretest Question: Three identical metal balls L, M and N initially have charge 4 C, -2 C and 0 C, respectively, as shown below. What is the charge on N after you let L first touch M, and then remove L and let M touch N? L M
+ 4 C
-2 C N
0 C
2 C
1 C
2/3 C
0.5 C
0 C
None of the above

2. Study Question 1: Two identical metal balls L and M initially have charge 4 C and 0 C, respectively, as shown below. What is the charge on M after you let L touch M and set them apart? L M
+ 4 C
0 C
4 C
2 C
1 C
0.5 C
0 C
None of the above

3. Study Question 2: Three identical metal balls L, M and N initially have charge 4 C, -2 C and 0 C, respectively, as shown below. What is the charge on L after you let L first touch M, and then remove L and let M touch N? L M
+ 4 C
-2 C N
0 C
2 C
1.5 C
1 C
2/3 C
0 C
None of the above

4. Study Question 3: Three identical metal balls L, M and N initially have charge 4 C, -2 C and 0 C, respectively, as shown below. What is the charge on N after you let L first touch N, and then remove L and let M touch N? L M
+ 4 C
-2 C N
0 C
4 C
2 C
1 C
2/3 C
0.5 C
0 C

5. Posttest Question: Three identical metal balls L, M and N initially have charge 4 C, -2 C and 0 C, respectively, as shown below. What is the charge on N after you let L first touch M, and then remove L and let M touch N? L M
+ 4 C
-2 C N
0 C
2 C
1 C
2/3 C
0.5 C
0 C
None of the above