The heat required to raise the temperature of one gram of water one degree Celsius
What is a calorie
100
The warming effect whose cause is that short-wavelength radiant energy from the sun can enter the atmosphere and be absorbed by Earth more easily than long-wavelength energy from Earth can leave
What is the greenhouse effect
100
a pulse of compressed air (or other matter)
What is a compression
100
Allowing charges to move freely along a connection between a conductor and the ground
What is grounding
100
Every spinning electron is considered this
What is a tiny magnet
200
The total energy stored in the atoms and molecules within a substance
What is internal energy
200
In general, heat transfers (or flows) in this direction
What is from hot to cold
200
Sound cannot travel in this medium
What is a vacuum
200
In terms of electrical phenomena, like charges do this
What is repel
200
This principle states that net electric charge is neither created nor destroyed but is transferable from one material to another
What is conservation of charge
300
Ice begins to form in a body of water first in this location
What is on the top
300
In a convection current, less dense material does this
What is rise
300
A frequency at which an elastic object, once energized, will vibrate. Minimum energy is required to continue the vibration at that frequency.
What is natural frequency
300
The charging of an object without direct contact
What is induction
300
A microscopic cluster of atoms with their magnetic fields algined
What is a magnetic domain
400
Water is most dense at this temperature, in degrees Celsius
What is 4 degrees Celsius
400
The type of heat waves that are re-emitted by the Earth's surface are called these
What are terrestrial waves
400
A phenomenon that occurs when the frequency of forced vibrations on an object match the object's natural frequency, and a dramatic increase in amplitude results
What is resonance
400
Charge polarization occurs in this type of material
What is an insulator
400
These surround a moving electric charge
What are electric and magnetic fields
500
2 part answer: What matter tends to do when cooled, and what matter tends to do when heated
What is contract and expand
500
If you fill two containers (1 white, 1 black) with hot water and place them on a countertop, this one cools down faster
What is the black one
500
A 70-dB sound is this many times more intense than a 30-dB sound
What is 10,000 (ten-thousand)
500
When an atom loses one or more electrons, it becomes this
What is a positively charged ion
500
A magnet is able to pick up an iron nail because of the growth of these in the iron nail