Unit 8 Test Answers

Which lists the waves in order of wavelength, from longest to shortest?

Which is true of a step-down transformer but not a step-up transformer?

The emission spectrums are known for the elements below.What elements are in the unknown sample? Select 2 options.

Levi observed properties of three different waves and recorded observations about each one in his chart.

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Yolanda is studying two waves. The first wave has an amplitude of 2 m, and the second has an amplitude of 3 m.

Which best describes what happens if two waves meet and build on each other?

What are some applications of the field of spectroscopy? Select 5 options.

Which change can make a generator stronger?

What is the purpose of the metal core in an electromagnet?

Walt made a study chart listing uses for two types of electromagnetic waves.

The waves created by two speed boats in a lake interact to form larger waves. This is an example of

What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom? ( Please list one word only and lower case )

Gazala makes the device shown in the diagram and uses it to pick up four paper clips on the point of the nail.

Yoon Ki investigates electromagnetic induction by moving a bar magnet into a coil of wire. His experimental setup is shown.