Physics 314 Unit 10 Test Remediation-Problems, Concepts, & Conversions
Name:
Period:
Complete all problems in this set. Then arrange for a meeting with me to review your work. Then you will be eligible for a
retake. The remediation process must be completed by 3:00 PM on Friday, February 19 th.
1.
What is the distance between two bodies of charge +5.0 C and -6.0 C if the amount of attraction that they feel is
1.22 x 1010 N?
2.
An electron sits in a uniform electric field of magnitude 4000 N/C and direction to the left. What is the magnitude
and direction of the electric force on the electron?
3.
What is the electric field provided by a charge of 3.0 x 10-6 C if it is evaluated at a distance of 6.0 mm away?
4.
When a negatively-charged conductor A is touched to a neutral conductor B, what is the eventual charge on
(a) Object A?
(b) Object B?
(c) What is the type of charging described here?
5.
A negatively-charged conductor A is brought close to a neutral conductor B. Then a ground is established on the
opposite side of B from where A is located. The ground is broken. What is the eventual charge on
(a) Object A?
(b) Object B?
(c) What is the type of charging described here?
6.
A piece of rabbit fur is rubbed against a neutral rubber rod. Rubber resides further up the triboelectric series than
rabbit fur. What is the eventual charge on
(a) The rubber rod?
(b) The rabbit fur?
(c) What is the type of charging described here?
7.
What is the net charge in Coulombs of one phosphate ion? (PO43-)
8.
Draw the electric field lines for the following scene in the box. The top charge is +5; the left-side charge is -3, and
the right-side charge is +3.
9.
What is the net electric force on a -4.0 C charge exactly at the midpoint between a charge of +2.0 C and a charge of
+8 C if each of the outside charges are 60 cm from the middle charge?
+
2
4
+
8
10. Metric Prefixes and units: μ- is the symbol for ____________________ and is worth ________________.
m- is the symbol for ____________________ and is worth ________________.
n- is the symbol for ____________________ and is worth _________________.
c- is the symbol for ____________________ and is worth _________________.
k- is the symbol for ____________________ and is worth _________________.
N/C are the units for ___________________ and it has a symbol of _________.
N is the unit for _______________________ and it has the symbol of _______.
C is the unit for _______________________ and it has the symbol of _______.
11. Standard vs. Scientific Notation:
3000 in scientific notation is shown as _________________________.
0.0000290 in scientific notation is shown as _____________________.
2.50 x 10-4 in standard form is shown as ________________________.
4.80 x 106 in standard form is shown as ________________________.
12. Conversions:
2.73 x 10-3 μC = _______________________ C
9.33 x 108 nC = ________________________ C
33.8 mm = ____________________________ m
2.08 x 102 cm = ________________________ m
490 kN = ______________________________ N
13. Describe what is needed to do to charge a one conductor with positive charge and an attached conductor with
negative charge if all you have is a rod with negative charge on it.