Question

organize it! tell which statements are true and which are false by moving the labels to correctly identify them. opposite poles of magnets attract, and similar poles repel each other. increasing the number of coils in an electromagnet will increase the power of the magnet. the energy transformation in an electromagnet is from chemical to electrical to electromagnetic waves. magnetic forces can be seen with the naked eye. the energy transformation in an electromagnet is: mechanical energy to electrical energy to chemical energy. the north poles of two different magnets will attract each other. the coils in an electromagnet make very little impact on the strength of the magnetic force. iron, nickel, and cobalt can all be made to be magnetic. magnets are found naturally in the earth. most magnets are made from 100% aluminum.

Explanation:

Step1: Recall magnetic - pole property

Opposite poles of magnets attract and similar poles repel each other. This is a fundamental magnetic property. So, "Opposite poles of magnets attract, and similar poles repel each other." is TRUE.

Step2: Understand electromagnet strength

Increasing the number of coils in an electromagnet increases the magnetic field strength, thus increasing the power of the magnet. So, "Increasing the number of coils in an electromagnet will increase the power of the magnet." is TRUE.

Step3: Analyze energy transformation in electromagnet

The energy transformation in an electromagnet is from electrical energy to magnetic energy, not from chemical to electrical to electromagnetic waves or mechanical - electrical - chemical. So, "The energy transformation in an electromagnet is from chemical to electrical to electromagnetic waves." is FALSE and "The energy transformation in an electromagnet is: mechanical energy to electrical energy to chemical energy." is FALSE.

Step4: Know magnetic force visibility

Magnetic forces are invisible and cannot be seen with the naked eye. So, "Magnetic forces can be seen with the naked eye." is FALSE.

Step5: Recall magnetic - pole interaction

Similar poles of magnets repel each other. So, "The north poles of two different magnets will attract each other." is FALSE.

Step6: Understand electromagnet coil impact

The number of coils in an electromagnet has a significant impact on the strength of the magnetic force. So, "The coils in an electromagnet make very little impact on the strength of the magnetic force." is FALSE.

Step7: Recall magnetic materials

Iron, nickel, and cobalt are ferromagnetic materials and can be made to be magnetic. So, "Iron, nickel, and cobalt can all be made to be magnetic." is TRUE.

Step8: Know magnet origin and composition

Magnets can be found naturally in the earth (e.g., lodestone), and most magnets are not made from 100% aluminum as aluminum is not a ferromagnetic material. So, "Magnets are found naturally in the earth." is TRUE and "Most magnets are made from 100% aluminum." is FALSE.

Answer:

1. "Opposite poles of magnets attract, and similar poles repel each other." - TRUE
2. "Increasing the number of coils in an electromagnet will increase the power of the magnet." - TRUE
3. "The energy transformation in an electromagnet is from chemical to electrical to electromagnetic waves." - FALSE
4. "Magnetic forces can be seen with the naked eye." - FALSE
5. "The energy transformation in an electromagnet is: mechanical energy to electrical energy to chemical energy." - FALSE
6. "The north poles of two different magnets will attract each other." - FALSE
7. "The coils in an electromagnet make very little impact on the strength of the magnetic force." - FALSE
8. "Iron, nickel, and cobalt can all be made to be magnetic." - TRUE
9. "Magnets are found naturally in the earth." - TRUE
10. "Most magnets are made from 100% aluminum." - FALSE