

Electric Circuits Review and Analysis
Interactive Video
•
Science
•
6th - 10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for a circuit that does not have a closed-loop path for electron flow?
Closed circuit
Open circuit
Series circuit
Parallel circuit
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a toaster with a resistance of 10.2 ohms is connected to a 120-volt outlet, how much current does it draw?
12.0 amps
10.5 amps
11.8 amps
9.8 amps
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An ammeter measures 2.5 amps of current in a wire connected to a 9-volt battery. What is the wire's resistance?
3.6 ohms
4.5 ohms
3.2 ohms
2.8 ohms
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating power in an electrical circuit?
P = V^2 / R
P = I * V
P = I / V
P = V / I
Tags
NGSS.HS-PS2-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A device rated at 0.25 watts is connected to 120 volts. What is the current through the device?
2.1 milliamps
3.0 milliamps
1.8 milliamps
2.5 milliamps
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total resistance of a series circuit with resistors of 2.0, 4.0, 5.0, and 7.0 ohms?
14 ohms
20 ohms
18 ohms
16 ohms
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a parallel circuit, how do you calculate the total resistance?
Product of all resistances
Reciprocal of the sum of reciprocals
Difference of all resistances
Sum of all resistances
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