Excretion
What is the main organ in the urinary System?
Kidneys
What is a luminous source
Objects that produce their own light
What makes sound?
Vibrations
What instrument is used for measuring heat?
Thermometer
What are the 2 types of Energy?
Kinetic Energy and Potential Energy
The tubes that bring urine to the bladder are called ___
Ureter
What color is bent the most
Violet
what does pitch and loudness depend on?
Pitch - depends on frequency
Loudness - depends on amplitude
What are the 3 temperature scales?
Celsius, Kalvin, Fahrenheit
According to the law of conservation of energy, energy is ___________________
Never destroyed or created, but is only transferred from one form to another
What are Nephrons
Microscopic filtering units of the kidney
Fully describe Transparent, Translucent and Opaque
Transparent - Allows light to pass through with no distortion
Translucent - Scatters light when passing through
Opaque - light cannot pass through
What does an Oscilloscope do?
It creates the picture of a sound wave on the screen
Name the 3 transfers of Heat.
Convection, Radiation, Conduction
Name 5 kinds of energy and their source
Heat/Thermal - burning fuels
Light/Radiant - sun (or solar) battery
Sound - vibrations in matter
Mechanical - gasoline engine
Chemical - storage battery, fuel, food
Electrical - generator
Atomic - radioactivity (radioactive substances)
What muscle allows urine to come through to the urethra
Sphincter Muscle
What is the scientific name for Short Sight and Long Sight?
Myopia
Hypermytropia
What is the difference between ultrasonic waves and infrasonic waves?
Ultrasonic waves have frequencies above 20kHz
Infrasonic waves have frequencies below 20kHz
What is the formula for converting Fahrenheit to Celsius?
(F-32)/9 = C/5
What is the main type of energy and why is it vital for life.
The Sun. Without the Sun, photosynthesis would stop and oxygen production would cease to exist.
What is the equation for Aerobic Respiration
Glucose + Oxygen = Carbon Dioxide + Water + Energy
Why do object appear to be bent when in water
The difference in the speed of light when traveling from one medium to another makes the pencil look distorted
Name the 3 parts of the ear and one "organ/body part" in each of them.
Outer Ear - Ear Canal or Pinna
Middle Ear - Eardrum, Malleus, Incus, Stapes or Eustachian Tube
Inner Ear - Semicircular Canals, Cochlea or Auditory Nerve
Give 2 equations each for:
Producing Oxygen using heat
Producing Carbon Dioxide using heat
Producing carbonates, carbon dioxide and water
Oxygen: 2HgO = 2Hg + O2
2H2O2 = 2H2O + O2
Carbon dioxide: CaCO3 = CaO + CO2
MgCO3 = MgO + CO2
Carbonates, Carbon dioxide, Water:
2NaHCO3 = Na2CO3 + H2O + CO2
Ca(HCO3)2 = CaCO3 + H2O + CO2
What is Kinetic and Potential energy and give 2 examples for each of them. (do not use examples in the book)
Kinetic Energy is energy in movement
1. Walking
2. A mosquito flying
Potential energy is stored energy/energy that an object has by reason of its position or state
1. Dams
2. A stretched rubber band