Electric Charges
Neutrons, electrons, and protons make up this
What are atoms or matter?
Any materials that attract iron or objects made of iron
What are magnets?
This is what happens when you increase the number of coils in an electromagnet.
What is it's magnetic fields gets bigger and stronger?
An educated guess or prediction that you write at the start of an experiment using the "If____, then___." format
What is hypothesis?
The reason iron filings aligned themselves the way they do around a magnet.
What is they align themselves with the magnetic fields of a magnet?
Electrons have a _______ charge. If an atom has an excess of these it becomes this kind of charge.
What is negative?
When two magnets are oriented this way there will be a repelling force.
What is same like poles?
If two electromagnets have 20 coils, but electromagnet A has 3 V of batteries and electromagnet B has 6V of batteries this is the stronger electromagnet.
What is electromagnet B?
This is the part of the investigation that you purposely change or alter to see if it has an effect on something. Good experiments only have one of these.
What are independent variable?
Maglev Trains are real trains that use a similar principle to our space shuttles that we were launching. A strong magnetic force repels the Maglev and makes it levitate in space above the railing and magnetic force allows it to move. By the same idea electromagnets could do the same thing. Does this statement sound true or false?
What is true?
If an object loses electrons, it causes the object to have this kind of charge, which is the same charge a proton has.
What is positive?
The area around a magnet where magnetic forces can be detected
What is a magnetic field?
What happens to the force between electromagnets or any magnet as you increase the distance between the two objects?
This is the part of an investigation that is being measured. It's what you are collecting data on. It's what is affected by your single variable you changed.
What is a dependent variable?
A scientist arranges two sets of magnets side by side. They are oriented the same way.
N-S and N-S and N-S and N-S
The first set she sets them 2 inches apart. The second set she sets them 4 inches apart. What is she investigating?
What is how does distance affect their magnetic force?
This happens when two objects have the same charges.
Object A (-) and Object B (-)
What is repel?
The ends of a magnet where the magnetic force is stronger
What are poles/magnetic poles?
Increase the distance between the objects, decrease the voltage of batteries, and decrease the number of coils would cause this.
The electromagnetic force to weaken.
This is based on data and is a summary of what you learned from your investigation.
What is a conclusion?
An object with no charge is ______.
What is neutral?
This affects how strong the charge's forces are.
What is the distance between the two objects?
This is the orientation of two magnets that will create the most potential energy.
What is two magnets repelling each and close in distance together?
It's not permanent meaning it doesn't always work. In fact, its electric field creates a magnetic field, but only when the electric field is changing or flowing. It can also change poles depending on the direction of the battery. This means it is this:
What is an electromagnet?
A student designs two electromagnets with different turns of copper wire on two 8-inch-long iron nails connected to 9 volt (9V) batteries. The student attaches steel paperclips to the tip of the nail of the electromagnets to form a chain. Paperclips were then attached until they formed the largest chain. What is the student investigating?
What is how the different number of coils affects the strength of the electromagnetic?
Two electromagnets are created with different voltages but same number of coils and the following data is presented:
Battery Paperclips Picked up
1 3
2 ?
3 9
Based on the table, how many paper clips would be attracted to the wire, if the batteries used was 2?
4, 5, 6, 8
What is 6?