Introduction to EM

What is a wave?

• A method of transmitting energy without matter

• A method of transmitting both energy and matter

• A method of transmitting neither energy nor matter

• A method of transmitting matter without energy

Which type of wave is part of the electromagnetic spectrum?

• Sound waves

• Mechanical waves

• Transverse waves

• Longitudinal waves

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Which wave has the highest frequency in the electromagnetic spectrum?

• Infrared radiation

• Radio waves

• Gamma rays

• Microwaves

What is a common use of X-rays?

• Heating homes

• Imaging bones

• Sending radio signals

• Cooking food

Which waves are considered safe due to their low energy?

• Infrared and ultraviolet

• Microwaves and radio waves

• Ultraviolet and visible light

• Gamma rays and X-rays