How do electromagnetic waves travel?

Through a vacuum without a medium.

What is the speed of electromagnetic waves in a vacuum?

Constant regardless of frequency.

Gamma rays, radio waves, microwaves, etc.

By transferring energy to water molecules.

By emitting heat to heat up other objects.

Electromagnetic waves travel at a constant speed in a vacuum, regardless of their frequency, allowing for a continuous spectrum from gamma rays to radio waves.
Microwaves and infrared waves are examples of specific frequencies of electromagnetic waves that have practical applications in heating food and objects, showcasing the diverse uses of these waves beyond simple transmission.

How do electromagnetic waves travel?
Through a vacuum without a medium.
What is the speed of electromagnetic waves in a vacuum?
Constant regardless of frequency.
What are some examples of electromagnetic waves?
Gamma rays, radio waves, microwaves, etc.
How do microwaves heat food in a microwave oven?
By transferring energy to water molecules.
How do infrared waves transfer energy to objects?
By emitting heat to heat up other objects.

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Electromagnetic waves, like light, can travel through a vacuum without needing a medium.
Electric and magnetic fields oscillate to create electromagnetic waves, making them transverse waves.
Electromagnetic waves travel at the same speed in a vacuum, regardless of frequency.
Electromagnetic waves can have various frequencies, from gamma rays to radio waves, forming a continuous spectrum.
Different frequencies of electromagnetic waves have specific names, such as microwaves and radio waves.
Microwaves in a microwave oven transfer energy to water molecules in food, heating them up.
Infrared waves emitted by heated objects, like in an electric heater, can transfer energy to heat up other objects, such as people.