Electromagnetic Radiation - 12 Physics: Caloundra SHS '24

What is electromagnetic radiation?

• Radiation consisting of electric fields

• Radiation consisting of magnetic fields

• Radiation consisting of electric and magnetic fields

• Radiation that does not involve fields

What are electromagnetic waves

• Electromagnetic waves are a form of solid matter
• Electromagnetic waves are a type of sound waves
• Electromagnetic waves are a type of chemical reaction
• Electromagnetic waves are a form of energy that consists of oscillating electric and magnetic fields.

What property of electromagnetic waves determines their energy?

• Amplitude

• Frequency

• Wavelength

• Speed

What is the speed of light in a vacuum?

• 3 x 10⁶ m/s

• 3 x 10⁷ m/s

• 3 x 10⁸ m/s

• 3 x 10⁹ m/s

Red light has _________________________ compared to violet light

• shorter wavelength and smaller frequency

• shorter wavelength and higher frequency

• longer wavelength and smaller frequency

• longer wavelength and higher frequency

• Ganna rays

• X-Rays

• Ultra-violet

• Infrared

• Radiowaves

Which of the following is a property of electromagnetic waves?

• They require a medium to travel

• They can travel through a vacuum

• They are longitudinal waves

• They have infinite speed

Which type of electromagnetic radiation has the highest energy?

• Microwaves

• Infrared

• Visible light

• Gamma rays