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Cards In This Set
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The synthsis of a large collection of information that contains well-tested and verified hypothesis about certain aspects of the world is known as a scientific
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Theory
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The statement "There are regions beneath the Earth's crust that will always be beyond the reach of scientific investigation," is a
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Speculation
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The scientist to first introduce the concept of inertia was
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Galileo
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An abject in mechanical equilibrium is an object
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At rest, moving with constant velocity, and has no acceleration
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When you stand at rest on a pair of bathroom scales, the readings on the scales will always
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Add up to equal your weight
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The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is
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10 N
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A package falls off a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is
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About 30 m/s
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A horse galups a distance of 10 km in a time of 30 minutes. Its average speed is
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20 km/h
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If an object move with a constant acceleration, its velocity must
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Change by the same amount each second
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A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
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Directed downward
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If a car increases its velocity from zero to 60 km/h in 10 seconds, its acceleration is
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6 km/h/s
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A kilogram is a measure of an object's
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Mass
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If one object has twice as much mass as another object, it also has twice as much
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Inertia
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The newton is a unit of
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Force
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An object is propelled along a straight-line path by a force. If the net force were doubled, the object's acceleration would be
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Twice as much
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