Physics
Since momentum has both magnitude and direction it can be classified as...?
A vector
Why can gas molecules be compressed?
There is a large distance between molecules in a gas.
What is made of phospholipids and integral proteins?
Cellular membrane.
What two blood vessels transport blood through the body?
Veins and arteries.
This type of weather front brings a short period of heavy precipitation.
Cold front.
In order for a rocket ship in space, far from any other objects, to move in a straight line with constant speed it must exert a net force that is...?
Zero
What type of mixture is a salt water solution?
Homogenous mixture.
What is a group of organisms of the same species living in the same place at the same time?
Population.
This is the name of the tube in the respiratory system that goes from the mouth to the lungs.
Trachea.
This is a chunk of matter that enters our atmosphere and is heated by friction with the air to the point of burning up as it falls towards the Earth.
Meteor.
A ball of mass is attached to a string connected to the ceiling, forming a pendulum. When the string is raised to an angle of 50 degrees below the horizontal (the ceiling) and released, the ball swings back and forth with a period of 0.4 s. Which of the following changes to the pendulum would decrease the period of the pendulum?
Decrease the length of the string.
When volume of a gas increases, what happens to its pressure? What type of relationship is this?
Pressure decreases; inverse relationship.
Which biome is associated with evergreen trees and caribou?
Taiga.
This is the name of the artery that blood gets pumped through as soon as it leaves the heart.
Aorta.
In this process, the nuclei of atoms fuse together to form a larger nucleus.
Nuclear Fusion.
A 5 kg loaded rifle is initially held at rest and then fired. The 0.05 kg bullet leaves the barrel at 450 m/s. What is the final momentum of the bullet-gun system?
Zero
As heat is added to a substance that is undergoing a phase change, does temperature of the substance change? Why or why not?
No, because heat is going towards breaking the intermolecular bonds.
The number of the carbon that new nucleotides are added to during DNA replication.
3'.
What layer of the skin consists of fatty tissue and cells?
Hypodermis or Subcutaneous layer.
A form of pictorial sketch in which vanishing points are used to provide the depth and distortion that is seen with the human eye.
Perspective.
An elevator is rising. In order to determine the tension in the cables pulling it, which values (for the elevator) would you need to know?
Mass and Acceleration
I originally have 10mL of water in a graduated cylinder. I place a 5g metal into the graduated cylinder, and the water level rises to 40mL. What is the density of my metal? (correct units)
0.17 g/mL.
What is the type of bond that holds the sugars and the phosphates together on the sides of the DNA "ladder".
Phosphodiester.
This is the name of the vein which blood passes through right before it re-enters the heart.
Vena cava.
Type of sketch of 3-D objects with 3 axes (x,y,z)?
Isometric Drawing.