Environmental Questions
This layer of Earth’s atmosphere protects us from harmful ultraviolet radiation.
the ozone layer
largest organ
skin
What is the smallest living unit in a human body?
The cell
What is the common name for NaCl?
Table Salt
give me the formula for Force of Friction
μFn
or muffin
The largest tropical rainforest in the world.
the Amazon Rainforest
What connects muscles to bones
tendon
what type of blood cell fights infections
white blood cells
If frost (gas -> solid) forms, what type of thermal process is this?
Deposition
(or Exothermic)
You have 1 minute for this question.
A 5kg box is pushed across a frictionless floor with a constant force of 20N. What is the acceleration?
F=ma
20N= 5kg(a)
a = 4 m/s2
China
What are the 5 basic tastes the tongue can taste?
Sweet, Sour, Salty, Bitter, Umami
In a eukaryotic cell, what are 3 organelles that contain DNA?
Nucleus
Mitochondria
Chloroplasts
What is the alternative name for H2O that is NOT water?
Dihydrogen Monoxide
(or less commonly hydrogen hydroxide)
If I die in the same bed I was born in (assuming tectonic plates haven't shifted, Earth's gravitational pull towards the Sun stays the same, and Earth isn't destroyed yet), what is my total displacement my entire life?
0
Where is the floating island of trash?
Between California and Hawaii in the Pacific Ocean
These tiny structures in your lungs allow oxygen to pass into your blood.
Alveoli
what are misfolded proteins that cause normal proteins to misfold and cause diseases?
Ex: Mad Cow, Kuru, Creutzfeld-Jakob Disease
Prions
What causes VSEPR (valence shell electron pair repulsion) shapes?
Lone pairs repelling harder than bonding pairs
A car accelerates from rest at a constant rate of 3 m/s2 for 8 seconds. How far does the car travel during this time?
96 meters.
x=x0+ v0t + (1/2)(a)(t2)
x=0 + 0(8)+ (1/2)(3)(82)
x = 96 meters
What is the greenhouse gas, produced by cows and landfills, that is about 25 times more potent than carbon dioxide at trapping heat?
Methane (CH4)
Where does the blood go (in your heart) after it goes through the mitral valve (bicuspid valve)?
This process in cells converts glucose into ATP without using oxygen.
anaerobic respiration
According to Le Chatelier’s Principle, if you increase the concentration of a reactant, the system will shift towards which direction?
towards the Product
You have 1 minute to solve this problem.
Car 1 weighs 1,260 lbs and is parked at rest on the highway.
Car 2 weighs 2,000 lbs and drives forward at 62 mph.
After the collision, Car 1 is knocked backwards at 9 mph.
Question: How fast does Car 2 travel after the crash?
67.67 mph
momentum before and after is the same.
1200(0)+2000(62)=1260(-9)+2000(vf)
vf= 67.67mph