Sound and Radioactivity Flashcards
What is sound?
A mechanical wave, caused by a vibration or oscillation through a solid, liquid or gas
What is the relationship between amplitude and sound?
The larger the amplitude of a wave, the louder the sound of the wave
What is the relationship between waves and sound?
The more the number of waves, the higher pitch of sound
What does sound pass through most easily?
Solids, because the particles are closer together than liquids or gas
How does the Doppler Effect apply to sound?
Sound travelling towards us has a smaller wavelength of a higher frequency, whereas sound travelling away from us has a greater wavelength and lower frequency
Where does sound travel slowest?
Air
How is time calculated?
By dividing distance over speed
How is distance calculated?
By multiplying speed and time
How is speed calculated?
By dividing distance over time
What is a Geiger counter?
The counter used to measure radiation
What is an alpha particle composed of?
Two protons and two neutrons
What does a beta particle contain?
One electron
What is an isotope?
Atoms with the same atomic number and number of protons but different mass number and number of neutrons
What happens during beta decay?
A neutron transmutes into a proton and electron and the electron is ejected as a beta particle
What is the atomic number?
The number of protons In the nucleus
