Unit 2 Section 1 - Earth's Energy Flashcards
The movement of energy as visible light, ultraviolet rays, and other types of electromagnetic waves.
Radiation
What is the difference between the radiation entering the Earth from the sun and the energy the Earth is emitting?
The energy from the sun is shortwave radiation and the energy from the earth is long wave radiation
What is radioactivity?
Unstable atomic elements decay over time releasing particles and energy
Which statement summarizes the primary way in which ocean currents redistribute energy on Earth?
Energy moves from equatorial regions toward the poles by convection.
The ability to do work
Energy
Which method of energy transfer does not require a medium?
Radiation
Describe Earth’s average annual global temperature.
Remains the same from year to year
Consider the scenario: The warming Earth causes ice to melt, which in turn reflects less sunlight and the Earth continues to warm. Is this an example of a positive feedback or negative feedback?
Positive feedback
The transfer of heat energy through collisions of the atoms or molecules of a substance.
Conduction
The movement of matter caused by differences in density.
Convection
the ratio of the mass to volume of a substance.
Density
Measure of the percentage of light that a particular surface will reflect.
Albedo
Gradual build up.
Accretion
Atoms of the same element that have different numbers of neutrons.
Isotopes
