Science review quiz

studied byStudied by 165 people
5.0(3)
learn
LearnA personalized and smart learning plan
exam
Practice TestTake a test on your terms and definitions
spaced repetition
Spaced RepetitionScientifically backed study method
heart puzzle
Matching GameHow quick can you match all your cards?
flashcards
FlashcardsStudy terms and definitions

1 / 55

flashcard set

Earn XP

Description and Tags

Physics

8th

56 Terms

1
force
A push or pull upon an object resulting from the object's interaction with another object.
New cards
2
Vector Quantity
The Physical quantity that has both directions as well as magnitude
New cards
3
Magnitude
Represents the strength and the Direction of the force exerted.
New cards
4
balanced force
when 2 forces act on an object that is equal in size but are opposite in direction, we say the forces are?
New cards
5
unbalanced Force
when 2 forces are acting on an object and are not equal in size, we say the forces are?
New cards
6
Net Force
overall force acting on an object or a combination of the magnitude and the direction
New cards
7
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.
New cards
8
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.
New cards
9
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.
New cards
10
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")
New cards
11
Mass
Less inertia has less?
New cards
12
Friction
Force present on the surface in contact with the object that tends to oppose the force acting on a body
New cards
13
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")
New cards
14
a= F/m
What is the formula to find Acceleration? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
New cards
15
F=(m)(a)
What is the formula to find Force? (Use parentheses "(F)" for multiplication, And the slash sign "/" for division)
New cards
16
m=F/a
What is the formula to find mass? (Use parentheses "(F)" for multiplication, And the slash sign "/" for division)
New cards
17
acceleration
m/s^2 is the unit sign of?
New cards
18
Force
N is the unit sign of?
New cards
19
Mass
Kg/g is the unit of?
New cards
20
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")
New cards
21
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.
New cards
22
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.
New cards
23
Bunsen burner
is a type of gas
burner commonly used as a heat
source in the laboratatory
New cards
24
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.
New cards
25
Clay Triangles
are placed on a ring
attached to a ring stand as a
support for a funnel, crucible, or
evaporating dish.
New cards
26
Droppers and disposable pipets
are for addition of liquids drop by
drop.
New cards
27
erlenmeyer flask
are useful to contain reactions or
to hold liquid samples. They are
also useful to catch filtrates.
New cards
28
Glass Funnel
are for funneling
liquids from one container to
another or for filtering when
equipped with filter paper
New cards
29
graduated cylinder
are for
measurement of an amount of
liquid.
New cards
30
Ring stand with Rings
are for
holding pieces of glassware in
place.
New cards
31
Test Tubes
are for holding small
samples or for containing small
scale reactions.
New cards
32
Test tube holder
are for holding
test tubes when tubes should not
be touched
New cards
33
Tongs
Similar in function to forceps but
are useful for larger items.
New cards
34
Volumetric Flask
Used to measure precise volumes
of liquid or to make precise
dilutions.
New cards
35
Wash Bottle
Used for dispensing small
quantities of distilled water.
New cards
36
Watch glasses
are for holding
small samples or for covering
beakers or evaporating dishes.
New cards
37
Wire Gauze
on a ring supports
beakers to be heated by Bunsen
burners
New cards
38
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
New cards
39
alcohol lamp
is used for
heating, sterilization, and
combustion in a laboratory.
New cards
40
microscope
is an instrument
that can be used to observe small
objects, even cells.
New cards
41
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.
New cards
42
W=(F)(m)
What is the formula to find work? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
New cards
43
J
What is the unit for work?( letter only)
New cards
44
No work done
If there is no force applied, there will be no
movement and direction of the movement,
therefore there is?
New cards
45
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?
New cards
46
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?
New cards
47
Work done
If there is a force applied, and the object moved,
but in the not exact direction of the force applied,
there is?
New cards
48
Work Done
If there is a force applied, and the object moved,
and in the exact direction of the force applied,
there is?
New cards
49
1J
1,000,000 mJ is how many Joules?(add Unit sign)
New cards
50
J=(1,000,000)(mJ)
What is the formula of mJ to J? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
New cards
51
mJ= 1,000,000/J
What is the formula of J to mJ? (Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
New cards
52
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.
New cards
53
Power
is the rate at which work is done and which
energy is transferred
New cards
54
W
WHAT is the unit sign of Power? (Letter only)
New cards
55
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)
New cards
56
W=Fdcos(-)
What is the formula of work at an angle?(Use parentheses "(a)" for multiplication, And the slash sign "/" for division)
New cards
robot