Exploring Light Waves

The video tutorial introduces eighth-grade students to the concept of light waves, covering their properties, types, and behaviors. It explains the characteristics of light waves, such as waveform, frequency, amplitude, and polarization. The tutorial also discusses the speed of light and its ability to travel through different mediums, including vacuums. Additionally, it highlights the practical applications of light waves in communication, photography, and the medical field, emphasizing their importance in everyday life.

What is the scientific definition of a wave?

• A type of sound that travels through air

• A disturbance that transfers matter from one place to another

• A visual representation of light

• A pattern that shows how energy is carried from one place to another

Which type of wave travels in all directions and is a mechanical wave?

• Sound waves

• Transverse waves

• Seismic waves

• Light waves

What is the term for the number of wave peaks that pass a point in one second?

• Polarization

• Amplitude

• Wavelength

• Frequency

What is the maximum height of a wave from its baseline called?

• Frequency

• Crest

• Wavelength

• Amplitude

Tags

NGSS.MS-PS4-1

Which of the following is NOT a characteristic of light waves?

• Wavelength

• Frequency

• Amplitude

• Density

Tags

NGSS.MS-PS4-1

What is the term for the way vibrations occur in a single plane in light waves?

• Wavelength

• Polarization

• Frequency

• Amplitude

How does light travel through a vacuum?

• Slower than through air

• It cannot travel through a vacuum

• At approximately 300,000 km per second

• At the same speed as sound

What phenomenon occurs when light waves bend as they pass through different mediums?

• Reflection

• Refraction

• Diffraction

• Polarization

Tags

NGSS.MS-PS4-2

Which technology uses light waves for high-speed internet?

• Strobe lights

• Lasers

• Fiber optics

• Radios

Tags

NGSS.MS-PS4-2

What natural phenomenon is created by the refraction of light in water droplets?

• Mirage

• Strobe light

• Rainbow

• Reflection