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9 Cards in this Set
- Front
- Back
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Force
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A push or a pull.
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Contact Force
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Arise from physical contact between two objects.
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Noncontact Force
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When two objects exert forces on one another even though they are not touching.
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Is mass a scalar quantity?
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Yes
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What is Newton's First Law of Motion?
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An object continues in a state of rest or in a state of motion at a constant velocity (constant speed in a constant direction), unless compelled to change that state by a net force.
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Inertia
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Inertia is the natural tendency of an object to remain at rest or in motion at a constant velocity. The mass of an object is a quantitative measure of inertia.
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Inertial Reference Frame
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An inertial reference frame is one in which Newton's law of inertia is valid.
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What is Newton's Second Law of Motion?
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When a net external force ∑F acts on an object of mass m, the acceleration a that results is directly proportional to the net force and has a magnitude that is inversely proportional to the mass. The direction of the acceleration is the same as the direction of the net force.
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What is the SI Unit of force.
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SI unit of force: kg*m/s^2 = newton (N)
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