Electricity and Magnetism

Quiz
•
Physics
•
10th Grade
•
Hard
Standards-aligned
Used 24+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement best describes a bar magnet that has been broken into two pieces?
Both pieces have lost their magnetic poles.
One piece has a north pole only, and the other piece has a south
pole only.
Each piece has both a north and a south pole.
Both pieces have a north pole only.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A light bulb with a resistance of 100 ohms is plugged into a 120-volt outlet. What is the current flowing through the bulb?
0.83 ampere
1.2 amperes
20 amperes
220 amperes
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true about parallel circuits?
They provide one path through which current can flow.
They are usually called open circuits.
They contain separate branches through which current can flow.
They cease to function when one part of the circuit is disconnected.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which best describes a circuit in series?
Different parts are on separate branches.
Current values are different at various points in the circuit.
Electrons may take several paths.
Electrons have only one path at all times.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circuit has 2.25 amps of current and a resistance of 4.00 Ω. What is the voltage difference across the circuit?
9.00 V
6.25 V
1.78 V
0.56 V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A copper wire is connected across a constant voltage source. Which change will cause an increase in the current flowing through the wire?
an increase in the length of the wire
an increase in the resistance of the wire
an increase in the diameter of the wire
an increase in the insulation around the wire
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which will cause an electromagnetic solenoid to increase its strength?
replacing the wire with an insulator inside the solenoid
increasing the temperature surrounding the solenoid
increasing the number of wire coils in the solenoid
removing the iron core from the solenoid
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