GUIDE FOR
2025/2026 TESTS|MOST COMMON QUESTIONS
WITH CORRECTLY VERIFIED ANSWERS (latest
quizzes)|ALREADY A+ GRADED|GUARANTEED PASS
opposite charges _____ - attract
same charges _____ - repel
factors affecting electrostatic force - distance (closer = more force) and net charge charge
of the objects (net charge further from 0 = more force)
how electrostatic force is related to Earth's formation - In space, 4.6 billion years ago, as
mineral grains from the solar dust cloud bumped into each other, this force made the materials
clump together.
to calculate net charge - add up all the charges on the object
factors affecting gravitational force - mass and distance
how gravitational force increases - more mass or closer together
how gravitational force decreases - less mass or farther apart
how gravitational force is related to Earth's formation - this force pulled rocks together to
create Earth; as the mass of the new planet increased, so did this force, and thus it pulled in
more objects and kept on growing until Earth's present size
gravitational force - an attractive force that acts between any two objects with mass
electrostatic force - The force between electrically charged objects (like charges repel and
opposite charges attract each other).
force - push or pull; it requires an interaction between 2 objects
friction - a force that resists/opposes motion (goes opposite the motion of the object)