Show:
Energy
Electricity
Electricity 2
Magnetism
Magnetism 2
100
Kinetic energy increases as what increases
What is velocity
100
Resistance is measured in a unit called what?
What is the ohm
100
A circuit that has two or more branches for electrons to follow.
What is a parallel circuit
100
Current that reverses direction in a regular pattern
What is alternating currents
100
A transformer that increases voltage
What is a step up transformer
200
A bus engine transfers chemical potential energy into what type of energy so that the bus can move.
What is kinetic energy
200
The path that allows only one route for an electric current is called.
What is a series circuit
200
A static discharge differs from an electric current in that a static discharge
What is lasts for only a fraction of a second.
200
A device that increases or decreases voltage in a power line
What is a transformer
200
Objects that keep their magnetic properties for a long time
What is permanent magnets
300
This is the unit for energy.
What is the joule
300
Electric charge that has accumulated on an object is what?
What is Static electricity
300
A material through which electrons do not flow easly
What is an insulator
300
The region around a magnet where the magnetic forces act
What is the magnetic field
300
A simple transformer consists of two coils of wire called
What is the primary and secondary coils
400
According to the Law of Conservation of Energy, the tatal amount of energy in the universe does what?
What is remains constant
400
The rate at which an electrical device converts energy from one form to another is called.
What is electrical power
400
A large discharge of static electricity
What is lightning
400
A switch that reverses the direction of the current in a motor
What is a commutator
400
Current that does not reverse direction
What is a direct current
500
In a nuclear fusion reaction, mass is transformed into what?
What is energy
500
The statement that current is equal to the voltage difference divided by the resistance is known as what
What is Ohm's Law
500
A device that is designed to open an overloaded circuit and prevent overheating.
What is a circuit breaker
500
The location of the strongest magnetic forces
What is magnetic poles
500
A device that uses an electromagnet to measure electric current
What is a galvanometer