NEW
Font size
WorksheetsEnergy Investigation 3
Total questions: 11
Worksheet time: 6mins
a set of signals that represents letters or words for sending messages
coil
code
key
rivet
a series of loops
code
coil
core
rivet
in an electromagnet, the material around which a coil of insulated wire is wound
coil
core
telegraph
code
a piece of iron that becomes a temporary magnet when electricity flows through an insulated wire wrapped around it
coil
core
electromagnet
key
a property of electric and magnetic fields that causes interactions with electric charges and currents
key
electromagnetism
rivet
code
a switch that completes the circuit in a telegraph system
code
core
key
rivet
a piece of iron or steel around which a coil is wound
rivet
key
coil
electromagnet
a device that uses an electromagnet to send coded messages by closing and opening an electric circuit
electromagnet
coil
code
telegraph
As the number of wire coils increases, the strength of the magnetic field
stays the same
increases
decreases
Samuel Morse created a ________________________________ , which is a set of signals that represents letters or words for sending messages.
key
code
coil
core
The device that uses an electromagnet to send coded messages is called a
telegraph
telephone
radio
phone
