Earth Science
What gas makes up most of the Earth's atmosphere?
Nitrogen
What is the equation for the Ideal Gas Law?
PV=nRT
What is the process by which the nucleus of an atom splits into two or more smaller nuclei?
Nuclear Fission
Which organelle provides energy for the cell?
Mitochondria
What is the lightest and smallest element?
Hydrogen
What is the name of the boundary where two tectonic plates meet and cause earthquakes?
Fault (or Fault Line)
Which of the following elements is an alkali metal?
A) Calcium
B) Iron
C) Sodium
D) Helium
C) Sodium
What is the formula for Kinetic Energy?
K = 1/2*m*v2
Which enzyme unzips the DNA double helix during replication by breaking hydrogen bonds?
Helicase
What are the units for electric current, potential, and charge?
Amps, Volts, Coulombs (respectively)
What are the four main layers of the Earth?
Crust, Mantle, Outer Core, Inner Core
Which of the following molecules has a trigonal planar molecular geometry?
A) NH3
B) CO2
C) BF3
D) H2O
C) BF3
6) A 52.0 N block rests on an inclined plane at an angle of 25.0 [N of E]. If the block is pushed with 10.0 N of force down the ramp and µ = 0.556, what is the block's initial acceleration?
1.09 m/s2
What is the name of the process by which cells engulf large particles or microorganisms using extensions of their membrane?
Phagocytosis
What was the first man-made object in space?
Sputnik
What are the three main types of rocks?
Igneous, Sedimentary, and Metamorphic
A 25.0 mL sample of 0.100 M hydrochloric acid (HCl) is titrated with 0.200 M sodium hydroxide (NaOH).
(a) What volume of NaOH is required to completely neutralize the HCl?
(b) What is the initial pH?
(c) What is the pH at the equivalence point?
12.5 mL, pH of 1, pH of 7
What are Kepler's three Laws? (Either name all 3 or explain them)
Law of Orbits, Law of Areas, Law of Periods
or:
Explanation of each law
What is the largest organ in the body?
The skin
How many bones do sharks have?
Zero!
Any 3: Cumulus, Stratus, Cirrus, Nimbus, Cumulonimbus, Altostratus, Altocumulus, Stratocumulus, Cirrostratus, Cirrocumulus
Balance the following redox reaction in an acidic solution:
MnO4 + H2S -> Mn2+ + S
2MnO4 + 5H2S + 6H+ -> 2Mn2+ + 5S + 8H2O
A construction worker drops a wrench from the top of a 60-meter-high building.
(a) How long does it take for the wrench to hit the ground?
(b) How fast is the wrench moving right before it hits the ground?
3.5 seconds, 34.3 m/s downward.
Name 2 types of psoriasis.
Plaque, guttate, pustular, inverse, erythrodermic, nail, or psoriatic arthritis.
What is a Geiger Counter used to measure?
Radiation