Definitions
How Light Travels and Behaves
Human Population & Earth Systems
Fill in the Blank
100

Light that you can see is called _________________.

visible light

100

What medium lets light travel fastest through?

Vacuum

100

What most directly increased global human population growth in the last 200 years?

A. Decrease in fossil fuel use

B. Advances in medicine and agriculture

C. Global decrease in birth rates

D. Immediate reduction of urban areas

B. Advances in medicine and agriculture

100

The law of reflection states that the angle of incidence equals the angle of ______________________.

reflection

200

A material that allows almost all light to pass through clearly is ____________________.

transparent 

200

Which statement best describes a convex mirror?

a. It curves inward and can form real images.

b. It curves inward and always forms virtual images.

c. It curves outward and always forms virtual images.

d. It is flat and can form real images.

c. It curves outward and always forms virtual images.

200

Which best defines carrying capacity?

A. The number of cities a country can build

B. The largest number of individuals Earth’s resources can support long-term

C. The rate at which a population grows each year

D. The total land area of a country

B. The largest number of individuals Earth’s resources can support long-term

200

Light with a shorter wavelength, like _______________________, refracts more than light with a longer wavelength.

Violet 

300

The bending of light when it passes from one medium to another is called _____________________.

refraction 

300

When parallel light rays hit a concave mirror, they:

Converge toward a focal point.

300

Which change is a direct result of urbanization?

A. More natural forest area preserved

B. Development of towns and cities on previously natural areas

C. A decrease in human resource consumption

D. Lower ecological footprints for city residents

B. Development of towns and cities on previously natural areas

300

Population: All the members of a species living in a given __________________.

area

400

______________________: a part of the environment that supplies material useful or necessary for the survival of living things.

Natural Resource

400

What color of visible light refracts the most when passing into water from air?

Violet 

400

What does an ecological footprint measure?

The area of productive land and water needed to supply resources and absorb wastes

400

Urbanization is the development of towns and cities on previously ________________ areas.

natural 

500

________________________: the largest number of individuals of a given species that Earth’s resources can support and maintain for a long period of time.

Carrying Capacity
500

If a material absorbs most wavelengths and reflects only green, the object will appear:

Green

500

What causes seasons on Earth?

The tilt of Earth’s rotation axis and Earth’s orbit around the Sun

500

Ecological Footprint: the area of Earth’s productive land and water required to supply the resources that an individual demands as well as to absorb the ________________ that the individual produces.

wastes 

M
e
n
u