END OF MODULE 4 Test

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through empty space and do not require a medium. They transmit energy instead of matter.

Front

How do electromagnetic waves differ from mechanical waves?

Back

Electromagnetic waves can travel through a vacuum (empty space), while mechanical waves require a medium (solid, liquid, or gas) to propagate.

Front

What happens to frequency when wavelength decreases?

Back

When the wavelength decreases, the frequency increases.

Front

What is the formula to calculate frequency from wavelength?

Back

The frequency (v) can be calculated using the formula v = c/λ, where c is the speed of light and λ is the wavelength.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.00 x 10^8 meters per second.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as one increases, the other decreases.

Front

What is orbital notation?

Back

Orbital notation is a way of representing the arrangement of electrons in an atom's orbitals using arrows and lines.

Front

What element has the orbital notation 1s² 2s² 2p²?

Back

The element with this orbital notation is carbon.

Front

How do you calculate the frequency of a photon with a given wavelength?

Back

Use the formula v = c/λ, where v is frequency, c is the speed of light, and λ is the wavelength.

Front

What is the unit of frequency?

Back

The unit of frequency is Hertz (Hz), which is equivalent to cycles per second.