Science review quiz

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Physics

8th

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56 Terms

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force
A push or pull upon an object resulting from the object's interaction with another object.
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Vector Quantity
The Physical quantity that has both directions as well as magnitude
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Magnitude
Represents the strength and the Direction of the force exerted.
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balanced force
when 2 forces act on an object that is equal in size but are opposite in direction, we say the forces are?
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unbalanced Force
when 2 forces are acting on an object and are not equal in size, we say the forces are?
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Net Force
overall force acting on an object or a combination of the magnitude and the direction
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Aristotle
He made pioneering contributions to all fields of philosophy and science, he invented the field of formal logic, and he identified the various scientific disciplines and explored their relationships to each other. He was also a teacher and founded his own school in Athens, known as the Lyceum.
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Galileo Galilei
He used an Archimedean model of floating bodies, and later the balance, argues that there is only one principle of motion—heaviness. Bodies move upward not because they have a natural lightness, he says, but because they are displaced or extruded by other heavier bodies moving downward.
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Isaac Newton
is popularly remembered as the man who saw an apple fall from a tree, and was inspired to invent the theory of gravity. If you have grappled with elementary physics then you know that he invented calculus and the three laws of motion upon which all of mechanics is based.
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Law of Inertia
An object will not change its motion unless a force acts on it. What law of motion is this? (name of law not number,Add "Law of")
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Mass
Less inertia has less?
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Friction
Force present on the surface in contact with the object that tends to oppose the force acting on a body
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Law of Acceleration
a quantitative description of the changes a force can produce in the motion of a body. It states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.
( NAME OF LAW NOT NUMBER, ADD" LAW OF")
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a= F/m
What is the formula to find Acceleration? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
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F=(m)(a)
What is the formula to find Force? (Use parentheses "(F)" for multiplication, And the slash sign "/" for division)
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m=F/a
What is the formula to find mass? (Use parentheses "(F)" for multiplication, And the slash sign "/" for division)
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acceleration
m/s^2 is the unit sign of?
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Force
N is the unit sign of?
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Mass
Kg/g is the unit of?
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Law of Action and Reaction
for every action (force) in nature, there is an equal and opposite reaction ( NAME OF LAW NOT NUMBER, ADD" LAW OF")
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Beaker
are useful as a reaction container or to hold liquid or solid samples. They are also used to
catch liquids from titrations and
filtrates from filtering
operations.
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Laboratory Equipment
The type of equipment found in
buildings or rooms equipped for
conducting scientific research or
teaching practical science and for
conducting scientific experiments and
research.
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Bunsen burner
is a type of gas
burner commonly used as a heat
source in the laboratatory
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Burets
are for addition of a
precise volume of liquid. The
volume of liquid added can be
determined to the nearest 0.01
mL with practice.
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Clay Triangles
are placed on a ring
attached to a ring stand as a
support for a funnel, crucible, or
evaporating dish.
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Droppers and disposable pipets
are for addition of liquids drop by
drop.
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erlenmeyer flask
are useful to contain reactions or
to hold liquid samples. They are
also useful to catch filtrates.
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Glass Funnel
are for funneling
liquids from one container to
another or for filtering when
equipped with filter paper
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graduated cylinder
are for
measurement of an amount of
liquid.
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Ring stand with Rings
are for
holding pieces of glassware in
place.
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Test Tubes
are for holding small
samples or for containing small
scale reactions.
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Test tube holder
are for holding
test tubes when tubes should not
be touched
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Tongs
Similar in function to forceps but
are useful for larger items.
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Volumetric Flask
Used to measure precise volumes
of liquid or to make precise
dilutions.
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Wash Bottle
Used for dispensing small
quantities of distilled water.
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Watch glasses
are for holding
small samples or for covering
beakers or evaporating dishes.
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Wire Gauze
on a ring supports
beakers to be heated by Bunsen
burners
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thermometer
is an instrument
that measures temperature. It
can measure the temperature of
a solid such as food, a liquid such
as water, or a gas such as air
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alcohol lamp
is used for
heating, sterilization, and
combustion in a laboratory.
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microscope
is an instrument
that can be used to observe small
objects, even cells.
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Work
is the product of the force applied and the
displacement; it is based also if the object is moving
on the direction of the force applied.
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W=(F)(m)
What is the formula to find work? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
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J
What is the unit for work?( letter only)
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No work done
If there is no force applied, there will be no
movement and direction of the movement,
therefore there is?
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No work done
If there is a force applied but the object did not
move, there will be no direction of the movement,
therefore, there is still?
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No work Done
If there is a force applied, and the object moved,
but the direction of the movement is not the same
as the direction of the force applied, there is still?
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Work done
If there is a force applied, and the object moved,
but in the not exact direction of the force applied,
there is?
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Work Done
If there is a force applied, and the object moved,
and in the exact direction of the force applied,
there is?
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1J
1,000,000 mJ is how many Joules?(add Unit sign)
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J=(1,000,000)(mJ)
What is the formula of mJ to J? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
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mJ= 1,000,000/J
What is the formula of J to mJ? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
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James Watt
A Scottish inventor where
developed the concept of
horsepower. The SI unit of
power, watt, was named after
him. Watt became interested in
the technology of steam
engines.
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Power
is the rate at which work is done and which
energy is transferred
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W
WHAT is the unit sign of Power? (Letter only)
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Power= Work done/ Time = energy transferred/ time
What is the formula to find power?(Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
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W=Fdcos(-)
What is the formula of work at an angle?(Use parentheses "(a)" for multiplication, And the slash sign "/" for division)