P:7 Magnetism and Electromagnetism Paper 2 Flashcards
Name the 2 Magnetic Poles and what happens if 2 poles of the same type are brought close together?
- The 2 Magnetic Poles are north and south.
- When poles of the same type are brought close they together repel.
Name the 3 Magnetic Material?
- 1) Iron (Fe).
- 2) Cobalt (Co).
- 3) Nickel (Ni).
Why is Steel not a Magnetic Material?
- Steel is Not a Magnetic Material because its made from different magnetic materials so its a composite material.
What do 2 Unlike poles do when they are brought close together and Which Direction do the arrows on the magnetic field flow in?
- The 2 Unlike Poles attract to each other.
- The Arrows on the magnetic Field move from north to south.
Where are the field lines most Concentrated at and How can we increase the strength of an electromagnet?
- The field lines are mostly concerted at both poles.
- We can increases the strength of a electromagnet by adding an iron core.
What is One Difference between Electromagnets and Bar magnets?
- One difference between electromagnets and bar magnets is that Electromagnets need electricity but bar magnets do not.
What can we use to find the shape of a magnetic field and What doesn’t use a electromagnet?
- To Find the shape of a magnetic field we can use a Compass.
- And a Compass doesn’t use an electromagnet.
What is The Rule of Magnets and What do Magnets not need?
- The Rule of Magnets is that opposites attract.
- Magnets do Not Need to Touch each other to affect each other.
What is Attraction and Repulson Examples of?
- Attraction and Repulsion are examples of Non-Contact forces.
Write a Definition of a Permeant magnet and a Induced Magnet?
- A Permeant magnet is a object that has its own magnetic Field around it
- a Induced Magnet is an object that turns into a magnet when its placed inside another magnetic field.
Permeant Magnets and Induced magnets always (_____________) each other?
- Attract
What is a Bar magnet a Example of?
- A Bar magnet is a Example of a Permeant magnet as it produces its own magnetic field.
Write a Definition of a Magnetic Field?
- The Magnetic Field Is the area around the magnet where another magnet.
In 3 Steps How do You Draw a Magnetic Field?
- 1) First Draw a Bar Magnet and Label the North and South.
- 2) Next draw the Straight Field lines that start from the north pole to the south pole and Some of them need to be curved.
- 3) Finally Draw the Curved Field Lines Going from north to south Maximum of 2 Lines on each side.
What Does the Earth have its own of and What Is the Earth core made of?
- The earth has its own Magnetic Field.
- And the core of the earth is made from Iron so the earth core is magnetic.
What Does a Current create when Its flowing through a wire and how an you see if this is true?
- When a Current flows thought a wire it creates a magnetic field.
- You can see this by placing a compass near to the wire.
In 2 Steps how do you Use the Right - Hand thumb rule to work out which directions the magnetic field goes?
- 1) First you need to point your right thumb in the direction of the current.
- 2) Next Curl your fingers and the direction of your fingers is the direction of the field.
Write a Definition of a Solenoid and What is the magnetic field inside the Solenoid?
- A Solenoid is a Coil of wire.
- The magnetic Field inside a Solenoid is strong and Uniform.
Write a Definition of an Electromagnet?
- An Electromagnet is a Solenoid with an Iron core.
Write a Definition of Uniform and Name 2 Ways to Increases the Magnetic Force of a Solenoid?
- A Uniform is the field that has the same direction and strength everywhere.
- 1) Add more coils to the solenoid.
- 2) Increases the Current.
Name The only step on how to set up the electromagnets?
- 1) First connect a Solenoid to the DC on the power pack.
Name the Details on how test the electromagnet?
- 1) Turn on the power.
- 2) Try to pick up paper clips.
