General Physics
What temperature does water boil at
100'C
What is the gel placed between the transducer and the skin of the patient and why is it used
The coupling medium and it is there to reduce acoustic impedance as much as possible
Speed is equal to
Distance / time
What are both jobs of a transducer
Generating and Receiving Ultrasound waves
Who is the greatest football player of all time
Not Messi, SUUUUUUIIIIIIII!!!!!!
What is the equation for potential energy
mgh
What is the most important part of a transducer.
Piezoelectric crystal
I is equal to
Ir + It
What causes specific acoustic impedance
Change in the medium
Who holds the record for most 3 pointers in a game
Klay Thompson
What relates force and perpendicular distance?
Moment
What does the symbol a mean
Intensity reflection coefficient
Specific Acoustic Impedance is equal to
Density x Speed of wave in medium
What causes Ultrasound waves
A PD acting on a piezoelectric crystal
Who has the most goals in football history
SUUUIIIIII
Why does radiation occur?
To become a stable Nucleus
What is the relative magnitudes of Ir and It quantified by reference to?
Specific Acoustic Impedance
a is equal to
(Z2 - Z1)2 / (Z2 + Z1)2
What frequency range is ultrasounds typically in
1-5 MHz
How where the pyramids built?
It was built before Newton invented gravity so the stones were weightless ;)
What temperature does water freeze at?
273.15'K
What protects a patient from electrocution during an ultrasound
Plastic Nose
I is equal to
I0e-ux
What is the biggest benefit of Ultrasounds
Have no real risks on patient
What song relates to Yasin Ghazaly
El Bakht by Wegz