Conservation of energy
according to law of conservation of energy, energy can be?
transformed from one form to another
What is avogadros number?
6.022 x 1023
What are the two types of forces
push and pull
What is the percentage of oxygen in inhaled air?
21%
What type of energy does a flying bird have?
Kinetic and potential energy
Calculate the moles in 3g of Oxygen
0.187 moles
What force pulls objects towards the ground and what is it’s acceleration
gravity and 10 m/s^2
What is the purpose of the pharynx?
To differentiate what tube for food or air to go down.
A 200kg boulder is 1000 m above the ground calculate its potential energy
2000 KJ
Calculate the weight (g) of 0.37502343896 moles of Oxygen
6g
Difference between velocity and speed
velocity is a vector wuenwity and speed is a scalar quantity
Name the order of the respiratory system
Nose, Nasal Cavity, Trachea, Bronchi, Bronchioles & Alveoli
Calculate the kinetic energy of a volleyball that has been served with a speed of 30 m/s and has a mass of 21kg
9.9 KJ
Balance this equation: SO2 + H2 -> S + H2O
1SO2 + 2H2 -> S + 2H2O
Name 3 scalar quantities
temperature, speed, mass etc
In the capillaries and alveoli, where is the concentration of CO2 highest?
Pulmonary Artery
Equation of mechanical energy
KE + PE
What is the number of molecules in 5g of Oxygen
1.881 x 1023
What is Newton’s second law equation
F = ma
What is the equation of respiration with balance?
C6H12O6 + 6O2 = 6CO2 + 6H2O