Work and Machines (Science)

Descripción

I have an upcoming test about Work and Machines, so here is how I study!
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Resumen del Recurso

Pregunta Respuesta
Force Is a push or a pull
Friction A force that acts in a direction opposite to the motion of a moving object
Motion a change in position in a certain amount of time
Force a push or a pull
frame of reference. The object that is used for comparison to calculate speed.
stationary still not moving
speed a rate at which an object moves.
sliding friction dragging a book over a desk
rolling friction wheels
fluid friction liquids/gases and air resistance
what is the formula speed? speed=distance over height
What is the formula of force? F=ma Force=mass x acceleration
what is the formula of work? Work= force x distance. W= w x d
Write the formula of a magic triangle for work. F= force M= mass A= acceleration
What is weight? What is the unit for weight? Weight is a force caused by gravity. Unit for weight is Newton, which is 1 kg·m/s2
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