For KhanAcademy, we need 20 active hours, and you can get that by watching the videos but can you rewatch the videos and still get the active hours? Or does anyone know how to easily get active hours. this is also for highschool not middleschool and for sat practice

Which statement best describes gravity? it is the force that repels only very small objects. it is the force that acts between objects with zero mass. it is the force that sometimes acts only on very large objects. it is the force that acts between any two objects in the universe.