SCIENCE 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