The Universe
A small body of ice, rock, and cosmic dust loosely packed together that follows an elliptical orbit and gives off gas and dust in the form of a tail.
comet
The star around which our solar system revolves.
Sun
The temperature at which particles of a substance have no more kinetic energy (in Kelvin)
0 K (zero Kelvin)
Waves move through air, water, or another substance. This is called the . . .
medium
A change in the size of an image compared with the size of the object.
magnification
Huge spheres of burning gases.
stars
The planet in our solar system known for its rings.
Saturn
What is a good insulator of heat energy?
air
A wave is a disturbance that transfers . . .
energy
A flat mirror produces what type of image?
virtual
An object so massive and dense that not even light can escape its gravits.
black hole
Largest planet in our solar system.
Jupiter
Type of energy that can be transferred in empty space
radiation
The speed of a wave depends on the
medium
ray
wave
stream of particles
Our solar system is in which galaxy?
Milky Way
Planet closest to the sun.
Mercury
Region of the electromagnetic spectrum with the highest energy.
gamma waves
Type of waves used in cooking.
Microwave
Name 3 regions of the ear.
middle ear
stirrup
eardrum
Some scientists believe the universe was created by a catastrophic event called . . .
The Big Bang
A total eclipse can only occur during which phase of the moon?
new moon
The visible part of the electromagnetic spectrum can be seen by us as . . .
colors
Most waves are caused by . . .
Vibration
A coil of wire with an electric current in it.