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Electricity
Magnets
Electromagnets
Circuits
Random
100
What are the two different charges that make up electricity?
What is positive and negative?
100
Where is the magnetic field the strongest?
What is at both poles?
100
What are three ways you can increase the strength of an electromagnet?
What is increase the amount of coils, electricity, and length of magnetic core?
100
Give an example of a good conductor.
What is metal, copper, or iron?
100
A ________ object _________a positively charged object. Hint: What charges (negative/positive) are attracted to each other and what repelled each other?
What is positively charged; repels?
200
A ________is an electric charge in motion.
What is an electric current?
200
The invisible field around a magnet is the magnet's ______ ______.
What is magnetic field?
200
A/An ___________'s magnetic field can be turned off. A/An ________'s magnetic field cannot be turned off (It is always on).
What is electromagnet and magnet?
200
What is a material that doesn't conduct electricity?
What is an insulator?
200
What are the building blocks of matter?
What is atoms?
300
Give two examples of static electricity. They occur in daily life.
What is charged hair and shocking someone?
300
Why does a compass needle point in a north-south direction?
What is because the needle reacts to Earth's magnetic poles?
300
What are two sources of energy that generators use to create electricity?
What is wind, water, steam or nuclear energy?
300
In a series circuit, what will happen if one bulb or light burns out?
What is the entire circuit will not light?
300
What do scientists do when they discover something (animal, idea, invention)?
What is they share their ideas with other scientists?
400
During an electric storm, the _________charge particles gather at the bottom of a cloud?
What is negative? *The ground is positive and attracts the negative particles in the cloud--creates lightning
400
a)What happens to a magnet's poles if a magnet is broken into two parts? b) What poles will seek each other on the two magnet parts?
What is when a magnet breaks into two it will each have its own north and south poles. The opposite charges will attract and the like will repel.
400
What type of energy is made when a coiled wire is spun around magnet? a)electrical b)magnetic c)mechanical d)geothermal
What is mechanical?
400
Do modern homes use series or parallel circuits? Why?
What is parallel circuits because if a light breaks the rest of the house will still have power?
400
Briefly describe how the Northern Lights are formed.
Varied Response.
500
What causes static electricity? a) only an object losing electrons b) only an object gaining electrons c) when positive and negative balance each other d) when positive and negative charges no longer balance
What is when positive and negative charges no longer balance? (shocking!)
500
A _________is a machine that creates electric energy by turning coils of wire around powerful magnets. Common in hospitals and schools.
What is a generator?
500
In a doorbell, electromagnets help convert _________(mechanical, electric, magnetic) energy to _______(mechanical, electric, magnetic) energy to _______ (mechanical, electric, magnetic) energy? *Hint: think about the electromagnet you made and the flow of energy
What is electric, magnetic, mechanical?
500
Describe the path that electricity travels in a series circuit and a parallel circuit.
In a series circuit an electric current travels in one path, a single loop. In a parallel circuit, however, the current has more than one path it can follow as it travels through the entire circuit.
500
What role does magnets play in helping generators create electricity?
What is magnets and coiled wire turn mechanical energy to electrical energy?