What is a reference point?, A moving object, A static position, A type of force, A speed measure, What does a negative sign indicate?, Right side, Left side, Upward direction, Downward direction, What is the boy's position relative to the building?, +50 m, -50 m, +100 m, -100 m, What does a positive sign indicate?, Left side, Right side, Below position, Above position, Where is the girl relative to the building?, -50 m, +50 m, +100 m, -100 m, What can be a reference point?, A moving car, A static tree, A flying bird, A running person, What is used to describe positions?, Coordinates, Colors, Shapes, Textures, What is the purpose of a reference system?, Measure speed, Describe positions, Calculate time, Determine mass, Which are the coordinates for P1 (color purplue)?, (-5 cm, 2.5 cm) , (5 cm, 2.5 cm), (0 cm, 3 cm), (0 cm, -3 cm), What is -10 km on the left from the reference point (building green line)?, cat, duck, apple, car, What is 9 km on the right from the reference point (building green line)?, cat, duck, apple, car, What is 0 km from the reference point (building green line)?, cat, duck, apple, car, What is -6 km on the left of the reference point (building green line)?, cat, duck, apple, car, What is -3 km on the left of the reference point (building green line)?, cat, frog, dinosaur, car, What is 4 km on the right of the reference point (building green line)?, cat, frog, dinosaur, car.

Understanding Reference Points in Physics

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