Physical Setting - Science Worksheet (Page 12 of 28) in pdf

Physical Setting - Science Worksheet Page 12

Base your answers to questions 41 through 43 on the diagrams below and on your knowledge of Earth

science. The diagrams, labeled A, B, and C, represent equal-sized portions of the Sun’s rays striking Earth’s

surface at 23.5° N latitude at noon at three different times of the year. The angle at which the Sun’s rays hit

Earth’s surface and the relative areas of Earth’s surface receiving the rays at the three different angles of

insolation are shown.

Sun’s rays

90°

66.5°

43°

Earth’s

surface

41 As viewed in sequence from A to B to C, these diagrams represent which months and which change in the

intensity of insolation?

(1) December → March → June; and decreasing intensity

(2) December → March → June; and increasing intensity

(3) June → September → December; and decreasing intensity

(4) June → September → December; and increasing intensity

42 As the angle of the Sun’s rays striking Earth’s surface at noon changes from 90° to 43°, the length of a

shadow cast by an object will

(1) decrease

(3) decrease, then increase

(2) increase

(4) increase, then decrease

43 Which graph best shows the duration of insolation at this location as the angle of insolation changes?

66.5

Angle (°)

( 3 )

( 4 )

( 1 )

( 2 )

[12]

P.S./E. Sci.–Aug. ’15

Physical Setting - Science Worksheet Page 12