Chapter 11 Physical Science Bonus ♥ Tessa Spolzino
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| The ancient Greeks found _______ which baffled them with their strange ability to attract and hold iron pieces. | Loadstones
🗑
|
||||
| Magnetic objects always have a _ and _ magnetic pole- they are magnetic dipoles. | North, South
🗑
|
||||
| If you cut a magnet in half you will end up with____ ______ ________, each with a _____ and ______ magnetic ______ | two smaller magnets
north, south
pole
🗑
|
||||
| Scientists have found that even when magnets are divided as many times as physically possible, each of the microscopic fragments have a | north and south magnetic pole.
🗑
|
||||
| Even the molecular structures that form magnets exhibit a | magnetic dipole
🗑
|
||||
| Magnetism is a | field force
🗑
|
||||
| A magnetic field can be modeled using | magnetic lines of force
🗑
|
||||
| Magnetic lines of force are modeled as ________ loops both within a magnetized object as well as in the space around it. | continuous
🗑
|
||||
| The direction of the field line is determined by _________________________ if inserted into the field. | the direction a tiny compass would point
🗑
|
||||
| Magnetic field lines point _______ from the north magnetic poles and toward _______ magnetic poles. | away, south
🗑
|
||||
| The distance between field lines indicates the | strength of the field at that point.
🗑
|
||||
| What is the Law of Magnetism? | Like poles repel, opposites attract.
🗑
|
||||
| Magnets strongly attract ____________ | ferromagnetic materials
🗑
|
||||
| Magnets are slighty attracted to ______________ | paramagnetic
🗑
|
||||
| Large groups of magnetic dipoles automatically align in the same direction to form microscopic regions called___________ | domains
🗑
|
||||
| n unmagnetized ferromagnetic materials the magnetic directions of the domains are oriented randomly, so their magnetic forces __________ | cancel each other
🗑
|
||||
| When the external magnetic field is applied the domains align to form a____________ _____________ | permanent magnet
🗑
|
||||
| Particle motion | increases with temperature
🗑
|
||||
| The temperature at which a material will abruptly lose its ferromagnetic properties is the ______ ____________ which is ________ | curie temperature
770 Celsius
🗑
|
||||
| Conventional electrical current flows in the | opposite direction from electrons.
🗑
|
||||
| What is the Right Hand Rule of Magnetism? | If you grasp a wire so your right thumb points in the direction of the flow of the convectional current, the magnetic lines of force caused by the current will point in the direction your fingers wrap around the wire.
🗑
|
||||
| What is a solenoid? | A coil of wire that acts like a magnet.
🗑
|
||||
| A solenoid with a bar magnet inserted in the middle makes an ________. | electromagnet
🗑
|
||||
| Electric current produces a ______________. | magnetic field
🗑
|
||||
| What does a magnetic field produce? | Electric Current
🗑
|
||||
| What happens when you increase the number of coils or the speed of motion? | It increases the amount of current produced.
🗑
|
||||
| A magnetic field affects the motion of what? | Electrical charges in a conductor.
🗑
|
||||
| When concentration of magnetic field lines near a conductor increases or decreases, a force is exerted on what? | Electrons.
🗑
|
||||
| The highly mobile electrons move through the conductor creating what? | current IF the conductor is a part of an electrical circuit
🗑
|
||||
| What happens if the magnetic field is unchanging? | no current is produced.
🗑
|
||||
| A turbine is a machine that converts the energy of a moving fluid into what? | Rotational Motion.
🗑
|
||||
| Motors are machines that convert electrical energy into what? | Rotating Mechanical Motion.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
tessa1hope
Popular Physical Science sets