SuperTeacherTools

Answer Key


#1 What form of radiation has the shortest wavelength? B -- x-ray
#2 When an electron falls from the excited state to back to the ground state, energy bundles called __________ are released. --
#3 The name of the instrument that measures the amount of light absorbed or emitted by a substance to determine particle size is a C -- spectrometer
#4 What is the relationship between frequency, wavelength and energy of light? B -- short wavelengths have high frequencies and high energy
#5 Which microscope can be used to determine the structure of a substance that does NOT conduct electricity? D -- AFM
#6 Which microscope can actually move individual metal atoms around a metal surface? A -- STM
#7 What is the size of the probe tip on an STM? C -- About 1 atom wide
#8 The name of the instrument used to determine the crystal lattice structure of berrylium nanoparticles. A -- x-ray diffraction
#9 Increasing the number of holes on the top of our magic box lid would D -- increase the detail and accuracy of our landscape.
#10 Which theory did Albert Einstein develop with respect to light? C -- the particle theory
#11 The best instrument to use when determining the size of gold nanoparticles dissolved in a liquid. A -- spectrometer
#12 What are two reasons why soap bubbles portray changing colors on their surfaces? B -- they are acting as prisms and changing thickness over time.
#13 An electrical wire that allows electrons to flow without resistance is called a D -- superconductor
#14 What is responsible for the difference in properties between diamond and graphite and bucky balls? B -- The molecular structures of each substance are different.
#15 Why can't we see x-rays? --