Spectroscopy 101

______________ is the energy that can travel through space in the form of waves.

• Thermal

• electromagnetic spectrum

• Radiant

Which of the following type of electromagnetic radiation has the highest energy?

• infrared

• ultraviolet

• microwaves

• radiowaves

The _______________ determines the color of visible light.

• wavelength

• speed

• amplitude

• phase

Based on the picture, choose the best description of how wavelength and frequency are related

• As wavelength increases, frequency increases

• As frequency increases, wavelength decreases

• As frequency increases, wavelength remains the same

• Frequency and wavelength mean the same thing

Tags

NGSS.HS-PS4-1

What is the definition of spectroscopy?

• Interaction of light with matter

• Interaction of heat with matter

• Interaction of sound with matter

Why do you choose chemistry to study in university

• I like chemistry since high school and matric/stpm

• I got no other options.

• I'm not sure what else to take

• I want to become a chemist

Which of the following statements is true regarding the speed of light in a vacuum?

• It changes based on the observer's speed

• It varies with the frequency of the light

• It is constant regardless of the wavelength

• It is faster in water than in a vacuum

What type of electromagnetic radiation is primarily used for communication in mobile phones?

• infrared

• gamma rays

• ultraviolet

• microwaves

Which phenomenon explains the bending of light as it passes from one medium to another?

• Dispersion

• Reflection

• Diffraction

• Refraction

What is the primary reason that the sky appears blue during the day?

• Scattering of shorter wavelengths of light

• Absorption of longer wavelengths by the atmosphere

• Emission of light from the sun

• Reflection of sunlight by the ocean