What is the main difference between magic and science as described in the video?

• Magic creates illusions, while science studies the natural world.

• Magic is real, while science is an illusion.

• Magic is a type of science.

• Science is a type of magic.

What is a wave in scientific terms?

• A random pattern of motion.

• A regular pattern of motion.

• A static object.

• A type of sound.

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What does oscillation mean?

• A type of wave.

• A disturbance in water.

• Movement back and forth at a regular speed.

• A type of electromagnetic wave.

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Which of the following is NOT a characteristic of a wave?

• Density

• Frequency

• Wavelength

• Amplitude

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What determines the pitch of a sound wave?

• Wavelength

• Speed

• Amplitude

• Frequency

Which type of wave can travel through empty space?

• Mechanical waves

• Water waves

• Sound waves

• Electromagnetic waves

What is the relationship between wavelength and frequency?

• They are directly proportional.

• They are inversely proportional.

• They are unrelated.

• They are the same.

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What is the formula to calculate the speed of a wave?

• Speed = Wavelength / Frequency

• Speed = Wavelength + Frequency

• Speed = Wavelength * Frequency

• Speed = Frequency - Wavelength

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What is the medium in which mechanical waves travel?

• Solid

• Liquid

• Gas

• All of the above

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How can ocean waves be used to generate electricity?

• By using the mechanical energy to turn turbines.

• By capturing the heat from waves.

• By using the light from waves.

• By converting sound waves into electrical energy.

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