physics 1010 exam 1 study guide exam |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
with correct answers
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inertia - correct answer✔✔the property of things to resist changes in motion
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newton's first law of motion - correct answer✔✔the law of inertia. an object at rest remains at
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rest and an object moving at a constant speed in a particular direction will continue to do so
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unless acted on by an unbalanced outside force.
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force - correct answer✔✔a push or a pull
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net force - correct answer✔✔the vector sum of forces that act on an object
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mechanical equilibrium - correct answer✔✔the state of an object or system of objects for |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
which there are no changes in motion. in accord with newton's first law, if at rest, the state of
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rest persists. if moving, motion continues without change
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equilibrium rule - correct answer✔✔for any object or system of objects in equilibrium, the |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
sum of forces acting equals zero. in equation form, ΣF = 0
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speed - correct answer✔✔how fast something moves; the distance traveled per unit of time.
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instantaneous speed - correct answer✔✔the speed at any instant. |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
instantaneous speed - correct answer✔✔the speed that would be read on a radar gun |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
average speed - correct answer✔✔the total distance traveled divided by the time of travel
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, average speed - correct answer✔✔the speed you would want to know when planning a road
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trip
velocity - correct answer✔✔the speed of an object and a specification of its direction of
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motion.
vector quantitiy - correct answer✔✔quantity in physics that has both magnitude and
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direction.
scalar quantity - correct answer✔✔quantity that can be described by magnitude without
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direction.
acceleration - correct answer✔✔the rate at which velocity changes with time; the change in
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velocity may be in magnitude, or direction, or both. |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
free fall - correct answer✔✔motion under the influence of gravity only.
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force - correct answer✔✔any influence that can cause an object to be accelerated, measured
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in newtons.
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friction - correct answer✔✔the resistive force that opposes the motion or attempted motion
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of an object either past another object with which it is in contact or through a fluid.
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mass - correct answer✔✔the quantity of matter in an object.
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mass - correct answer✔✔the measure of the inertia or sluggishness that an object exhibits in
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response to any effort made to start it, stop it, deflect it, or change in any way its state of
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motion.
with correct answers
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inertia - correct answer✔✔the property of things to resist changes in motion
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newton's first law of motion - correct answer✔✔the law of inertia. an object at rest remains at
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rest and an object moving at a constant speed in a particular direction will continue to do so
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unless acted on by an unbalanced outside force.
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force - correct answer✔✔a push or a pull
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net force - correct answer✔✔the vector sum of forces that act on an object
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mechanical equilibrium - correct answer✔✔the state of an object or system of objects for |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
which there are no changes in motion. in accord with newton's first law, if at rest, the state of
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rest persists. if moving, motion continues without change
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equilibrium rule - correct answer✔✔for any object or system of objects in equilibrium, the |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
sum of forces acting equals zero. in equation form, ΣF = 0
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speed - correct answer✔✔how fast something moves; the distance traveled per unit of time.
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instantaneous speed - correct answer✔✔the speed at any instant. |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
instantaneous speed - correct answer✔✔the speed that would be read on a radar gun |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
average speed - correct answer✔✔the total distance traveled divided by the time of travel
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, average speed - correct answer✔✔the speed you would want to know when planning a road
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
trip
velocity - correct answer✔✔the speed of an object and a specification of its direction of
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motion.
vector quantitiy - correct answer✔✔quantity in physics that has both magnitude and
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
direction.
scalar quantity - correct answer✔✔quantity that can be described by magnitude without
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direction.
acceleration - correct answer✔✔the rate at which velocity changes with time; the change in
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velocity may be in magnitude, or direction, or both. |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
free fall - correct answer✔✔motion under the influence of gravity only.
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force - correct answer✔✔any influence that can cause an object to be accelerated, measured
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
in newtons.
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friction - correct answer✔✔the resistive force that opposes the motion or attempted motion
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of an object either past another object with which it is in contact or through a fluid.
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mass - correct answer✔✔the quantity of matter in an object.
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mass - correct answer✔✔the measure of the inertia or sluggishness that an object exhibits in
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
response to any effort made to start it, stop it, deflect it, or change in any way its state of
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motion.
