Physics

Question 1

Inertia

Answer 1

property of steady motion in the absence of any outside influence.
A body in motion tends to remain in motion; a body at rest tends to remain at rest.

Question 2

physical quantities, magnitudes

Answer 2

position, velocity, mass, acceleration, and force

Question 3

Aristotle and Galilei

Answer 3

Aristotle wrongly established that objects velocities are proportional to the forces exerted on them. and predicted that heavier objects fall faster.

Galilei established that all objects fall at the same rate, due to inertia