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Fields and Forces Quiz

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Questions and Answers

What are forces that can act over a distance explained by?

Magnetic attraction

Electric charge

Fields (correct)

Physical contact

What are two examples of fields mentioned in the text?

Water fields and air fields

Gravity fields and light fields

Sound fields and heat fields

Electric fields and magnetic fields (correct)

How can we map out magnetic fields according to the text?

Using a microscope

Using iron filings (correct)

Using a ruler

Using a camera

What types of metal are attracted by magnets according to the text?

Iron, nickel, cobalt, and steel Signup and view all the answers

What do objects with a positive or negative electric charge produce according to the text?

Fields Signup and view all the answers

What causes objects to become charged?

Rubbing against each other and transferring positively charged protons Signup and view all the answers

What happens when like charges repel each other?

They repel each other Signup and view all the answers

What can make the magnetic field of a magnet stronger?

Increasing the number of coils in a wire or increasing the amount of electricity flowing through the coil Signup and view all the answers

What is required to turn an ordinary piece of wire into an electromagnet?

Passing electric current through the wire coil Signup and view all the answers

How do devices with speakers, like phones and earbuds, produce sound?

By converting electrical signals into sound waves using electromagnetic fields Signup and view all the answers