When do we say that an object is in free-fall?




nmnmn sure hehe

Kinetic energy, form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.

kinetic energy possess motion


if there is no movement an object or if there is a constant movement.




No air resistance

c.when it speeds up


when we say accelerate it means it's about speed

Anytime matter is in motion, it has kinetic energy. The faster an object moves, the more kinetic energy it has. The more mass an object has, the more kinetic energy it has.


Parfocal means that the microscope is binocular. ... Parfocal means that when one objective lens is in focus, then the other objectives will also be in focus.

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When under the influence of gravity or being pulled by the force of gravity

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