Energy Learning Set 5.1-5.2
An electromagnet creates a magnetic force as long as a power source is..
What is connected?
What is protons and electrons?
What is the device used to measure small electric currents?
What is a galvanometer?
What is a electrical current?
When current-carrying wire is wrapped around an iron core, what can it create?
What is a magnet?
What on a electromagnet would attract a steel paperclip?
What is both positive and negative ends?
What is the force between two electrons?
What is repulsive?
What does A dc battery provide?
What is potential energy?
A measure of the energy for an amount of charge
What is voltage?
Iron fillings can be used to show
What is a magnetic field?
As the voltage of the source powering an electromagnet increases, the magnetic force generated by the electromagnet..
What is increases?
How much power does the average hair dryer use?
What is 1200W?
A single path for current is present in which type of circuit?
What is a series circuit?
An electrical device that can control the flow of current in an electrical circuit is called
What is a resistor?
A compass needle aligns itself with Earth's magnetic field and points
What is north?
Out of steel,iron,copper, and nickel which one is not attracted to magnet?
What is copper?
What properties does Earth have that causes grounding to drain static charge?
What is a conductor?
In a parallel circuit all devices receive the same..?
What is voltage?
A material that is a good electrical insulator
What is a poor conductor?
What will the north poles of two bar magnets do when brought together?
What is repel?
What is the flow of charged particles called?
What is electric current?
What unit of electrical energy is sold by electric companies?
What is kilowatt-hour?
What does a light bulb turn electrical energy into?
What is light and heat?
An electrical device that changes the voltage of alternating current is called
What is a transformer?
What prevents most charged particles from the Sun from hitting Earth?
What is Earth's magnetic field?