Chapter 20 Review
Authored by Barb Runyon
Physics
1st - 12th Grade
NGSS covered
Used 22+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 1.5 m wire carries a 5.0 A current when a potential difference of 3.7 V is applied. What is the resistance of the wire?
0.74 ohms
7.5 ohms
1.4 ohms
19 ohms
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the current in a circuit that is attached to a 12 volt battery and has a resistance of 6.0 ohms?
0.5 A
72 A
2 A
5 A
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 1700 W machine operates at 120 V. What is the resistance in the machine?
14.2 ohms
8.5 ohms
0.12 ohms
0.071 ohms
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the voltage of a battery that has a current of 4.0 A and a resistance of 3.0 ohms?
1.25 V
12 V
0.75 V
120 V
Tags
NGSS.HS-PS3-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When you rub a rod with fur, you are charging the rob by
contact
induction
friction
radiation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an atom gains electrons, it becomes a
positively charged ion
negatively charged ion
neutral atom
neutral ion
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following would reduce the resistance of a metal wire?
increasing its thickness
increasing its temperature
increasing its length
all of the above
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