Q3 ANSWER KEYS

ANSWER KEY # ANSWER 1 B) Friction 2 B) It increases 3 D) Fluid friction 4 D) Perpendicular to the surface 5 A) Friction always causes an object to slow down 6 D) Transformation 7 A) Kinetic energy 8 B) Potential energy 9 D) Mechanical energy 10 A) Photosynthesis 11 B) Pulley 12 D) Inclined plane 13 A) Lever 14 D) Wheel and axle 15 A) Screw 16 D) A sled sliding down a snowy hill 17 B) It increases 18 D) Fluid friction 19 A) Energy cannot be created or destroyed, only transformed from one form to another 20

# ANSWER 1 a. Panahon ng pakikibaka 2 d. Ferdinand Marcos 3 b. Kakulangan ng trabaho 4 c. 1960 5 c. Pagpoprotesta ng mga estudyante laban sa pamahalaan 6 b. Masagana 99 7 c. Pagpapalitan ng pangalan ng Pilipinas mula sa "Philippines" tungo sa "Pilipinas" 8 d. Community Mortgage Program (CMP) 9 a. Agricultural Land Reform Code 10 c. Operation Brotherhood 11 c. Republic Act No. 6639 12 b. Ina ng Demokrasya 13 b. Nagsulat ng Noli Me Tangere at El Filibusterismo 14 b. Pagtanggol ng Kalayaan 15 c. Himagsikang Pilipino 16 c. Himagsikang Pilipino 17 a. Kahirapan 18