Work and Machines Vocabulary

ivy.maeda
Flashcards by ivy.maeda, updated more than 1 year ago
ivy.maeda
Created by ivy.maeda about 4 years ago
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Vocabulary for G7 Science Unit on Work and Machines
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Question Answer
force Force is a push or pull; it gives energy to an object causing it to change its position, start/stop moving or change directions. Force has no direction.
motion a change in a position in a certain amount of time
friction a force that acts in a direction opposite to the motion of a moving object
speed the rate at which an object move
stationary still, not moving
frame of reference the object that is used for comparison to calculate speed
sliding friction dragging a book over a desk
rolling friction wheels
fluid friction liquids/gasses and air resistance
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