Activities

Question 1

Concave vs convex

Answer 1

Concave: at high elevations, contour lines are closely spaced, at low elevations, contour lines are widely spaced
Convex: at high elevation, contour lines are widely spaced, at low elevations, contour lines are closely spaced

Question 2

Planar

Answer 2

contour lines have the same spacing on each contour line

Question 3

With the use of conduction, this part is magnetically induction-damped (which means that there is another opposite magnetic field that dampens the magnetic field given off by the earth) and therefore, allows for precision and reading in a less amount of time

Answer 3

Magnetic needle

Question 4

This is used to remedy a compass whose graduated circle has turned from its proper position

Answer 4

Declination adjustment screw

Question 5

This circle is either divided into 0-90 gradations or 0-360 for measurement of bearing and azimuth direction, respectively

Answer 5

circular scale

Question 6

this part is used as a means to determine inclination and bearing direction with precision and is located on the cover of the compass and at the end of the large sight

Answer 6

small sight and peep sight

Question 7

this is used to determine inclination, one uses the vernier adjustment to move the * to its desired position

Answer 7

long level

Question 8

usually utilized when an object below the observer to be sighted is situated greater than 50 degrees from the tip of the large sight through the peep window

Answer 8

sighting window

Question 9

this part of the compass contains numbers that are used for measuring inclination using the vernier adjustment and long level

Answer 9

semicircular scale

Question 10

this is used as a means to determine inclination and azimuth direction with precision and is located along the long arm of the compass

Answer 10

large sight

Question 11

this part is used during precise direction measurement to level/make horizontal the compass to the ground

Answer 11

round level

Question 12

this part is located at the bottom of the compass and is used to determine inclination

Answer 12

vernier arm

Question 13

it reflects both levels such that if there is something blocking one’s line of sight, one can use the mirror to level the compass/measure inclination. It is also used to divide an object sighted through the large sight

Answer 13

center line on mirror

Question 14

this is used to lift pin to stop it from rotating

Answer 14

needle lift pin

Question 15

difference between azimuth and quadrant bearing

Answer 15

azimuth measures angles clockwise from north
quadrant bearing: the compass is divided into 4 quadrants and angles are measured from north and south towards east and west directions

Question 16

Room temperature vs refrigerator
rate of cooling/crystallization
crystal size
relative abundance
crystal shape

Answer 16

Room temperature: slower, small, less
refrigerator: faster, large, few
octahedral

Question 17

purpose of seed crystal in crystallization process

Answer 17

serve as a nucleation site where the ions will bind

Question 18

relationship of:
temperature during crystallization and rate of crystallization
temperature during crystallization and crystal size
rate of crystallization and crystal size
rate of crystallization and crystal abundance

Answer 18

inversely proportional
proportional
inversely proportional
proportional

Question 19

law of constancy of interfacial angles

Answer 19

…

Question 20

compute bar scale
1:50,000 (mm)
for 8 cm

Answer 20

4 km

Question 21

title, sheet name, north arrow/compass arrow, region, longitude/latitude, source, legend, bar scale, index, magnetic declination, datum

Answer 21

magnetic declination: angle on the horizontal plane between magnetic north and true north

Question 22

mountain, ridge, narrow stream valley, wide valley, depression, plateau, plain

Answer 22

…

Question 23

steep, gentle, concave, convex, planar

Answer 23

… planar - uniform slope

Question 24

brunton compass is a * that consists of an ordinary compass, folding open sights, a mirror and a rectangular spirit-level clinometer

Answer 24

compact pocket instrument

Question 25

brunton compass consists of | comfc

Answer 25

an ordinary compass, folding open sights, a mirror and a rectangular spirit-level clinometer

Question 26

``` lithosphere asthenosphere mesosphere outer core inner core ```

Answer 26

``` crackers - brittle peanut butter - plastic something solid and rocky chocolate balls something fluid chocolate syrup something solid sponge cake/cream cheese ```

Question 27

at which direction does the philippine plate move with respect to the fixed eurasian plate?

Answer 27

north west

Question 28

how fast is it moving?

Answer 28

7 cm/year