Devices
A device that measures small currents.
Galvanometer
All electrical currents create a...
Magnetic Field
Does a TV use a step-up transformer of a step-down?
Step-Up
Goes from 120V - 180V
Do magnets turn protons, neutrons, or electrons to a like direction?
Electrons
How many solar masses are in the solar system?
1
The unit originated from the mass of the solar system.
A coil of wire with a current.
Solenoid
T or F?
Alternating currents move in a straight path.
False (F)
Does a CD player use a step-up transformer or a step-down?
Step-Down
Goes from 120V to 10V
Who discovered that electricity and magnetism are related?
Hans Christian Oersted
Babies have around ____ more bones than adults.
100
A device that transforms mechanical energy into electrical energy.
Electric Genorator
The energy associated with electric currents.
Electrical Energy
Doorbells use what device discussed in this chapter?
Electromagnet
What coil goes into a transformer?
Primary Coil
Arrange these from most dense to least dense.
Star
Neutron Star
Nebula
Jupiter
Black Hole
Black Hole
Neutron Star
Nebula
Star
Jupiter
A transformer that decreases voltage.
Step-Down Transformer
An electric motor transforms energy form _____ to _______.
Electrical to Mechanical energy.
Some cars use an electric motor to turn what?
An axle. (The Wheels)
T or F?
DC and AC generators are different with no similarities.
False(F)
They are similar except one part is replaced with a different part in an AC generator.
The diaphragm serves what purpose in the body?
Stimulate and pattern the way you breathe. That is why your stomach moves when you breathe
A solenoid with a ferromagnetic core that can be turned on or off.
Electromagnet
It rotates the armature in an electrical motor.
Commutator
Water that turns a turbine is changing what type of energy to electrical?
Mechanical Energy
What is the standard voltage of an outlet?
120 Volts
Can you space dive from space?
No, the pressure would be too much for the human body. They dive from the stratosphere.