The video explores the properties of waves, including amplitude, wavelength, and frequency. It demonstrates how sound waves require matter to travel, while light waves do not. The video also covers how waves can be reflected, absorbed, or transmitted, and provides practical examples of these concepts. Additionally, it includes a demonstration of ghost crystals and a DIY experiment to create a similar effect.

What does the amplitude of a wave represent?

• The distance between two peaks of a wave

• The energy transferred by the wave

• The height of the wave from its resting point

• The speed of the wave

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How is wavelength measured in waves?

• From trough to trough

• From peak to peak

• From start to end of the wave

• From peak to trough

What property of waves determines the pitch in sound waves?

• Speed

• Frequency

• Wavelength

• Amplitude

How do sound waves travel?

• They do not travel

• Through matter

• Through light

• Through vacuum

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How do sound waves differ from light waves in terms of their need for a medium to travel?

• Neither requires a medium

• Both require a medium

• Light waves require a medium, while sound waves do not

• Sound waves require a medium, while light waves do not

What happens when light waves are absorbed by a material?

• They are converted to thermal energy

• They increase in speed

• They pass through unchanged

• They are reflected

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What does the color of light depend on?

• Wavelength or frequency

• Amplitude

• Intensity

• Speed

What is refraction of light?

• The reflection of light at an angle

• The bending of light as it passes through different materials

• The absorption of light by a material

• The transmission of light through a material

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Why do leaves appear green?

• They transmit green light

• They absorb green light

• They reflect all colors except green

• They reflect green light

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What is the significance of borosilicate glass in making ghost crystals?

• It is cheaper than regular glass

• It has unique color properties

• It has similar optical properties to oil

• It is more durable than regular glass