Flashcards
unit 7.3
Flashcards do conjunto (9)
- 1gravitygravity:force of attraction between any two objects, for example between the earth and person.
- 2gravitational fieldgravitational field:region of space in which an object will experience a force due to gravity.
- 3massmass:the amount of matter in a substance.
- 4weightweight:the force of gravity pulling on an object ; measured in newtons
- 5center of masscenter of mass: a point representing the mean position of the matter in the body or system.
- 6non cantactnon contact: The force which acts on an object without coming physically in contact with it is called non-contact.
- 7comparing mass and weight
- 8fallingfalling: move from higher to lower level, without control.
- 9terminal velocityterminal velocity : The point at which a falling object ceases to accelerate,but falls at constant speed, because its weight is balanced by air.
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- FlashCards sobre unit 7.3, criado por asra amir em 01-08-2017.
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- asra amir
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