Choose the item that best fits each description

1. type of reflection seen in a plane mirror
2. main form of radiation emitted by our bodies
3. EM radiation, such as light, is this type of wave
4. highest frequency EM wave from list
5. a magnetic field is
6. occurs because carbon dioxide blocks infrared but not visible light
7. image height divided by object height
8. colors of a rainbow can be seen because
9. is not a greenhouse gas
10. blocks or diminishes light reflected from surfacesa. blackbody radiation
b. carbon dioxide
c. greenhouse effect
d. ELF waves
e. magnetic field
f. X-rays
g. lodestone
h. magnification
i. carbon monoxide
j. dispersion
k. interference
l. a transverse wave
m. specular reflection
n. middle frequency radio waves
o. normal
p. longitudinal wave
q. plane mirror
r. polarization
s. gamma rays
t. infrared
u. created by a moving electric charge
w. ozone
x. diffuse reflection

Consider the following problem: a box with an open top is to be constructed from a square piece of cardboard, 3 ft wide, by cutting out a square from each of the four corners and bending up the sides. find the largest volume that such a box can have.

What is the relationship between atmospheric pressure and the density of gas particles in an area of increasing pressure? (2 points) as air pressure in an area increases, the density of the gas particles in that area decreases. as air pressure in an area increases, the density of the gas particles in that area increases. as air pressure in an area increases, the density of the gas particles in that area remains constant. as air pressure in an area increases, the density of the gas particles in that area increases and decreases in an alternating pattern. 3. which of the following correctly describes a way in which earth's atmosphere interacts with the geosphere? (2 points) it contains gases that living organisms breathe. it contains gases that trap incoming solar radiation. it provides a medium for cycles that provide nutrients to living organisms. it provides a medium for water to move between earth's surface and the air. 4. which of the following is considered a drawback to using wind energy as a source of power? (2 points) wind energy is nonrenewable. wind energy produces large amounts of air pollution. wind turbines can kill birds that fly through the rotors. wind turbines are built too close to major population centers. 5. a meteorologist predicts that the weather in a region will soon change from clear skies to probable thunderstorms. prior to making this prediction, what did the meteorologist most likely observe on a barometer? (2 points) the barometer fell slightly. the barometer fell substantially. the barometer rose slightly. the barometer rose substantially. 6. which of the following do meteorologists not typically use weather balloons to record? (2 points) atmospheric pressure cloud types humidity temperature 7. during which step in the can crush lab did water vapor force air from the can? (2 points) the can was filled nearly to the top with water. the can was placed on the hot stove top burner for several minutes. the can was removed from the hot stove top burner. the can was placed upside-down in the water-filled pan.

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?