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67 Cards in this Set

  • Front
  • Back
Not a method of heat transfer
Specific heat
Fuel is burned inside chambers called cylinders
Internal combustion engine
In the ___ phase of a four stroke engine, waste gases are released.
Exhaust stroke
A poor insulator of heat
Iron
A ______ is an example of a heat mover.
Refrigerator
Describes the measure of the average kinetic energy of the particles in an object
Temperature
Not used to calculate change in thermal energy.
Volume
______ does not require the presence of particles of matter.
radiation
The name for thermal energy that is transferred only from a higher temperature to a lower temperature.
Heat
Changes thermal energy into mechanical energy.
Heat engine
The temperature at which all particle motion of matter ceases.
Absolute zero
state of matter: definite shape;definite volume
solid
most common state of matter in the universe
plasma
used to measure pressure
kilopascals
uses pascal's principle
hydraulics
use bernoulli's principle
airplanes
state of matter in which particles are farthest apart
plasma
state of matter that would fill a room quickest
gas
upward force in a liquid
buoyancy
The amount of energy needed to change a solid to a liquid at its melting point
heat of fusion
An example of an SI unit is a...
second
___ is the system of measurement used by scientists around the world.
SI
SI is based on powers of...
ten
What is the prefix for one one-thousandth?
-milli
What is the symbol for deciliter
dL
what is the symbol for micrograms
the funny u shaped thing and g
the distance between two points is...
length
what is not a derived unit
meter (m)
which is not equal to 1000 mL
1cubic centimeter
total distance traveled divided by the total travel time
average speed
the tendency of an object to resist a change in its motion
inertia
the proper unit of acceleration
m/s sqaured
not used in calculating acceleration
average speed
the forces on an object with a net force of zero
balanced forces
speed can be defined by...
distance/time
what has the greatest inertia
a car parked on the side of the road
what best describes who will likely hit the win shield in a head-on collision
inertia of the unbelted person
an object will_________ when a net force acts on it
accelerate
newton's second law is...
a=F/m
The force of gravity on an object is its...
weight
________is not a type of friction
centripetal
an object falling towards earth
falls faster the heavier it is
projectiles follow a curved path because they have...
inertia
the product of mass and velocity is...
momentum
_____ exerts the weakest gravitational force on earth
pluto
when a leaf falls,__ ____ opposes gravity
air resistance
in a circular motion, the centripetal force is ...
towards the center
when energy is transferred, a_____ must occur
change
the small cat running down the street has more kinetic energy
nothing
when a lump of clay is dropped, the energy transforms from...
GPE>KE>thermal energy
at an oranges highest point, it will have...
mostly potential energy
The GPE of an object depends on...
weight and height
The idea that the total amount of energy is constant is central to the law of conservation of energy
nothing
kinetic energy is directly related to...
mass
friction frequently causes some of an object's mechanical energy to be changed into...
thermal energy
the process of breaking apart large atomic nuclei into smaller nuclei...
nuclear fission
green plants store energy from the Sun in...
chemical potential energy
work must involve...
the transfer of energy
how many types of simple machines
6
in an ideal machine...
work input is equal to work output
a machine cannot...
multiply energy
_____ indicates the number of times a machine multiplies the effort force.
mechanical advantage
you could increase the IMA of an inclined plane by...
increasing its length
the effort rope of a single fixed pulley must move ___ to raise a resistance 4 m
4 m
in a wheel and axle, ____ exerts the resistance force
the axle
IMA=l/h 8/2 IMA=4
nothing
the IMA of an inclined plane 8m long and 2m high is...
4