Electricity & Magnetism

Name:

Date:

Instructions: Spark your curiosity with questions about electrical and magnetic phenomena

1.
Who is credited with inventing the practical incandescent light bulb?
A
Thomas Edison
B
Nikola Tesla
C
Michael Faraday
D
Benjamin Franklin
2.
Benjamin Franklin's famous kite experiment helped prove that lightning is a form of what?
A
Radiation
B
Heat
C
Sound
D
Electricity
3.
What unit of electrical resistance is named after German physicist Georg Ohm?
A
Ampere
B
Ohm
C
Volt
D
Watt
4.
Who discovered electromagnetic induction, the principle behind electric generators?
A
Michael Faraday
B
James Clerk Maxwell
C
André-Marie Ampère
D
Alessandro Volta
5.
What type of current flows in one direction only?
A
Static current
B
Alternating current (AC)
C
Direct current (DC)
D
Pulsed current
6.
Nikola Tesla championed which type of electrical current for power distribution?
A
Alternating current
B
Direct current
C
Geothermal current
D
Static electricity
7.
What is the unit of electrical current named after André-Marie Ampère?
A
Volt
B
Coulomb
C
Ampere
D
Watt
8.
What natural phenomenon is caused by charged particles from the Sun interacting with Earth's magnetic field?
A
Aurora borealis
B
Mirages
C
Rainbows
D
Lightning
9.
Alessandro Volta invented which device, an early form of battery, around 1800?
A
Galvanometer
B
Voltaic pile
C
Dynamo
D
Leyden jar
10.
What invisible field surrounds a magnet and exerts force on other magnets and magnetic materials?
A
Magnetic field
B
Electromagnetic spectrum
C
Gravitational field
D
Electric field
11.
What device transforms voltage from one level to another in electrical power distribution?
A
Transformer
B
Resistor
C
Capacitor
D
Transistor
12.
James Clerk Maxwell unified electricity and magnetism into a single theory called what?
A
Relativity
B
Quantum mechanics
C
Thermodynamics
D
Electromagnetism
13.
What material is the best conductor of electricity?
A
Copper
B
Aluminum
C
Gold
D
Silver
14.
What happens when you rub a balloon on your hair, causing it to stick?
A
Static electricity
B
Gravitational pull
C
Chemical bonding
D
Magnetic attraction
15.
What safety device in a home electrical system automatically breaks the circuit when current is too high?
A
Capacitor
B
Transformer
C
Circuit breaker
D
Rectifier

Answer Key

Question 1

A. Thomas Edison

Question 2

D. Electricity

Question 3

B. Ohm

Question 4

A. Michael Faraday

Question 5

C. Direct current (DC)

Question 6

A. Alternating current

Question 7

C. Ampere

Question 8

A. Aurora borealis

Question 9

B. Voltaic pile

Question 10

A. Magnetic field

Question 11

A. Transformer

Question 12

D. Electromagnetism

Question 13

D. Silver

Question 14

A. Static electricity

Question 15

C. Circuit breaker

Find more free puzzles and brain games at www.SeniorBrainGames.org