Friction and Gravity
Terms in this set (14)
What are the factors that affect the friction force between two surfaces?
The strength of the force of friction depends on two factors; the type of surfaces involves and how hard the surfaces push together,
What is one way you could reduce the friction between two surfaces?
Ball bearing are one way of reducing friction between two surfaces.
The acceleration due to gravity of all objects in free fall is the same. Why, then, do some objects fall through the air at a different rate?
Because a air resistance make force object to slow down while free fall.
How does mass differ from weight?
Weight is a measure of the force of gravity on a object, and mass is a measure of the amount of matter in that object,
What is the of universal Gravitation?
The law of universal gravitation states that the force of gravity act between all object in the universe.
The general term for the force that one surface exerts on another when they rub against each other.
The kind of friction that results when a wheel turns on a surface.
The kind of friction that results when you rub sandpaper against wood.
The kind of friction that exists between oil and a door hinge.
A measure of the force of gravity on a objects.
The state that exists when the only force acting on an objects is gravity.
The force that accelerates objects toward Earth.
A falling object reaches this when forces of gravity and air resistance are balanced.
The kind of friction that slow a falling object.
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