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Chapter 20 Review

Authored by Barb Runyon

Physics

1st - 12th Grade

NGSS covered

Used 22+ times

Chapter 20 Review
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19 questions

Show all answers

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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