| Exam Name: | GED Science Exam | ||
| Exam Code: | GED-Science Dumps | ||
| Vendor: | GED | Certification: | GED Science |
| Questions: | 300 Q&A's | Shared By: | baxter |
An electromagnet is a magnet that can be turned on and off. It consists of a central metal core, such as iron, and many wrappings of wire around the metal core. An electrical current sent through the wire wrappings causes the formation of a magnetic field. There are several ways to increase the strength of an electromagnet: increasing the number of wrappings, increasing the current of electricity, making the wrappings closer together, or increasing the diameter of the core.
Five electromagnets are shown above. The electrical power source for each electromagnet is an ordinary flashlight battery.
Which electromagnet will produce the strongest magnetic field?
Which scientific study would probably be most useful in predicting worldwide rainfall trends?
When choosing an organism to study, geneticists prefer the following characteristics. The organism should be small, have a fast growth rate, and have the ability to produce many offspring.
Based on these criteria, which plant would be LEAST useful for a genetic study?
What is a likely prediction about other vertebrates with magnetite near their brains?
TESTED 30 Aug 2025
