Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Kiewit Book N
Kiewit Middle Book N Review
| Question | Answer |
|---|---|
| This device will convert electricity into mechanical (kinetic) energy. | electric motor |
| This common household device has an electromagnet in it. | doorbell |
| This device detects electrical current produced by way of electromagnetic induction. | galvanometer |
| These show up when you pour iron filings around a magnet. | magnetic field lines |
| What results when you continue to cut a magnet and its resulting parts in half? | Smaller and smaller magnets all having both north and south poles. |
| What are examples of conductors? | metal, people, water |
| What are examples of insulators? | paper, wood, cloth, plastic, rubber, air, glass |
| What are four types of magnets? | Ferromagnet, permanent magnet, temporary magnet, and electromagnet |
| In a circuit, what happens to current if you raise the voltage? | it increases |
| In a circuit, if you increase resistance, what happens to current? | it decreases |
| Using Ohm's law (V=IR) what is the voltage in a circuit that has 10 amps and 100 Ohms? | 1000V |
| What are domains? | Tiny groups of atoms whose magnetic fields are lined up. |
| How does friction charge an object? | electrons are "wiped" from one surface to another |
| If an object's electrons are rearranged by direct contact, what charging method was used? | conduction |
| How does induction rearrange an object's electrons? | electron's are arranged by a nearby object |
| If a magnetic field is disturbed by a rotaing coil, what is produced? | induced current |
| Conductors....... | allow the free movement of electricity. |
| Insulators....... | block the free movement of electricity. |
| Oersted discovered that a moving electric current produces........ | a magnetic field |
| Magnetic poles are where........ | the magnetic force is strongest. |
| A load, wires, and energy source are the basic parts of a.......? | circuit |
| In this circuit if one part goes bad, there is still an available pathway for the electricity. | parallel |
| In this type of circuit, if one part goes bad, the whole circuit goes out. | series |
| Ultimately, what is responsible for producing a material's magnetism? | its atoms |
| Three ways to demagnetize a temporary magnet are..... | hit it, heat it, or put it in a stronger magnetic field. |
| If an object gains electrons, it becomes.... | negative |
| If an object loses electrons, it becomes..... | positive |
| This is a build up of non-moving electrical charge..... | static electricity |
| What kind of transformer has fewer coils of wire in its primary coil than in its secondary coil? | step-up transformer |
Created by:
Mr. Kucera
Popular Physical Science sets