CO2 Dragster Project About this Module You will convert a wedged shape piece of wood (about 12” in length) into a sleek racecar body using.
Download ReportTranscript CO2 Dragster Project About this Module You will convert a wedged shape piece of wood (about 12” in length) into a sleek racecar body using.
Slide 1
CO2 Dragster
Project
Slide 2
About this Module
You will convert a wedged shape
piece of wood (about 12” in
length) into a sleek racecar body
using hand or power tools. Paint,
wheels are added to make the car
race worthy.
The cars speed down the track and
cross the finish line in speeds less
than one second.
Slide 3
About the Module
Continued
You will follow guidelines or restrictions that are
outlined in the booklets provided.
Students will use a Design Process to follow when
building their CO2 Dragster.
Slide 4
CO2 Powered Dragster
WHAT DO WE USE TO POWER OUR DRAGSTER?
Compressed C02 – Carbon Dioxide
Slide 5
Carbon Dioxide
Inorganic compound, a colorless gas with a
faint, sharp odor and a sour taste when
dissolved in water, chemical formula CO2.
About 0.03% of air by volume, it is
produced when carbon-containing
materials burn completely and from
fermentation and animal respiration. Plants
use CO2 in photosynthesis to make
carbohydrates.
Slide 6
Carbon Dioxide
Under pressure it becomes a liquid,
the form most used in industry.
If the liquid is allowed to expand, it
cools and partially freezes to the
solid form, dry ice.
It is used as a refrigerant, chemical
intermediate, and inert
atmosphere; in fire extinguishers,
foaming rubber and plastics,
carbonated beverages
Slide 7
Force
Force is simply a push
or a pull.
When F = 0 an object
at rest will stay at rest
or an object in
motion will stay in
motion.
When F > 0 an object
will accelerate(a) in
ratio to the objects
mass(m).
F=mxa
Slide 8
Mass
Mass is the amount of matter in an object.
It has no direction associated with it.
Mass stays the same no matter what force is
acting on the object.
Weight is the force of the earth's gravity that is
acting on object’s mass.
Weight = Mass x Gravity
Slide 9
Acceleration
Acceleration is simply the increase of speed or velocity of an
object.
If an object is not changing its velocity than it is not accelerating.
What are some examples of something that is accelerating in
speed?
Slide 10
Kinetic Energy
Kinetic energy is the energy of motion. An
object which has motion - whether it be
vertical or horizontal motion - has kinetic
energy.
Like work and potential energy, the standard
metric units of measurement for kinetic
energy is the Joule.
Slide 11
Potential Energy
PE = mgh
An object can store energy as the result of its position. For
example, the heavy ram of a pile driver is storing energy
when it is held at an elevated position. This stored energy
of position is referred to as potential energy.
PE = Energy (in Joules)
m = mass (in kilograms)
g = gravitational acceleration of the earth (9.8 m/sec2)
h = height above earth's surface (in meters)
Slide 12
Sources of Energy that Fuel
Real World Technologies
Internal Combustion Engine
Steam Engine
Rocket Engine
Mechanical Energy
Electric Motor
Gas turbine
Slide 13
Internal Combustion
Engine
Slide 14
Steam Engine
Slide 15
Rocket Engine
Slide 16
Mechanical Energy
Slide 17
Electric Motor
Slide 18
Gas Turbine
Slide 19
Kinetic Energy = ½ MV2
If a CO2 dragster with a mass of 1 kilogram is moving at 15
meters per second what is its kinetic energy?
Force = Mass x Acceleration
If a CO2 dragster with a mass of 1 kilogram is
accelerating 20 meters per second what is the
force being provided by the CO2 cartridge?
Slide 20
Newton’s Laws
st
1
law-If an object is at rest, it
tends to stay at rest, and if an
object is in motion, it tends to stay
in motion at a constant velocity
until an outside force affects the
object's state of inertia.
Also known as law of inertia
Slide 21
Newton’s
nd
2
Law
If an unbalanced force acts on an object, the
object accelerates in the direction of the force.
The acceleration varies directly with the
unbalanced force. The acceleration varies
inversely with the mass of the object.
F = ma
Slide 22
Newton’s
for
rd
3
Law
every action force, there
exists a reaction force that is
equal in magnitude but
opposite in direction
Newton's third law states that
for every action force there is
an opposite and equal
reaction force.
Slide 23
Goal – The most efficient
dragster
Efficiency is the relationship between energy input
and energy output.
Efficiency is expressed as a percentage. The more
efficient a system, the less energy that is lost within
that system.
Slide 24
What causes your dragster to lose of
energy?
Drag
Friction
Excess Mass
Slide 25
Drag
When the CO2 dragster travels down the track, its frontal area
pushes against the air in front of it, and air flowing over the
body causes friction. This is known as drag.
How do we reduce drag?
Slide 26
Friction
Friction is a force that is
created whenever two
surfaces move or try to
move across each
other.
Friction always opposes
the motion or
attempted motion of
one surface across
another surface.
How do we reduce friction?
Slide 27
Excess Mass
The more mass a
dragster has, the
slower the
acceleration.
The force will be the
same for all
dragsters. It is
provided by the
CO2 cartridge.
How do we reduce mass?
Slide 28
Dragster Design Process
1) Clarify the problem
2) Research and investigate
3)Generate design
4) Choose a solution
5) Develop a prototype
6) Test and evaluate
7) Redesign the solution
Slide 29
Vocabulary
Carbon Dioxide
Force
Mass
Weight
Acceleration
Velocity
Kinetic Energy
Potential Energy
Refrigerant
Internal
Combustion
Engine
Physics
Efficiency
Drag
Friction
Inertia
CO2 Dragster
Project
Slide 2
About this Module
You will convert a wedged shape
piece of wood (about 12” in
length) into a sleek racecar body
using hand or power tools. Paint,
wheels are added to make the car
race worthy.
The cars speed down the track and
cross the finish line in speeds less
than one second.
Slide 3
About the Module
Continued
You will follow guidelines or restrictions that are
outlined in the booklets provided.
Students will use a Design Process to follow when
building their CO2 Dragster.
Slide 4
CO2 Powered Dragster
WHAT DO WE USE TO POWER OUR DRAGSTER?
Compressed C02 – Carbon Dioxide
Slide 5
Carbon Dioxide
Inorganic compound, a colorless gas with a
faint, sharp odor and a sour taste when
dissolved in water, chemical formula CO2.
About 0.03% of air by volume, it is
produced when carbon-containing
materials burn completely and from
fermentation and animal respiration. Plants
use CO2 in photosynthesis to make
carbohydrates.
Slide 6
Carbon Dioxide
Under pressure it becomes a liquid,
the form most used in industry.
If the liquid is allowed to expand, it
cools and partially freezes to the
solid form, dry ice.
It is used as a refrigerant, chemical
intermediate, and inert
atmosphere; in fire extinguishers,
foaming rubber and plastics,
carbonated beverages
Slide 7
Force
Force is simply a push
or a pull.
When F = 0 an object
at rest will stay at rest
or an object in
motion will stay in
motion.
When F > 0 an object
will accelerate(a) in
ratio to the objects
mass(m).
F=mxa
Slide 8
Mass
Mass is the amount of matter in an object.
It has no direction associated with it.
Mass stays the same no matter what force is
acting on the object.
Weight is the force of the earth's gravity that is
acting on object’s mass.
Weight = Mass x Gravity
Slide 9
Acceleration
Acceleration is simply the increase of speed or velocity of an
object.
If an object is not changing its velocity than it is not accelerating.
What are some examples of something that is accelerating in
speed?
Slide 10
Kinetic Energy
Kinetic energy is the energy of motion. An
object which has motion - whether it be
vertical or horizontal motion - has kinetic
energy.
Like work and potential energy, the standard
metric units of measurement for kinetic
energy is the Joule.
Slide 11
Potential Energy
PE = mgh
An object can store energy as the result of its position. For
example, the heavy ram of a pile driver is storing energy
when it is held at an elevated position. This stored energy
of position is referred to as potential energy.
PE = Energy (in Joules)
m = mass (in kilograms)
g = gravitational acceleration of the earth (9.8 m/sec2)
h = height above earth's surface (in meters)
Slide 12
Sources of Energy that Fuel
Real World Technologies
Internal Combustion Engine
Steam Engine
Rocket Engine
Mechanical Energy
Electric Motor
Gas turbine
Slide 13
Internal Combustion
Engine
Slide 14
Steam Engine
Slide 15
Rocket Engine
Slide 16
Mechanical Energy
Slide 17
Electric Motor
Slide 18
Gas Turbine
Slide 19
Kinetic Energy = ½ MV2
If a CO2 dragster with a mass of 1 kilogram is moving at 15
meters per second what is its kinetic energy?
Force = Mass x Acceleration
If a CO2 dragster with a mass of 1 kilogram is
accelerating 20 meters per second what is the
force being provided by the CO2 cartridge?
Slide 20
Newton’s Laws
st
1
law-If an object is at rest, it
tends to stay at rest, and if an
object is in motion, it tends to stay
in motion at a constant velocity
until an outside force affects the
object's state of inertia.
Also known as law of inertia
Slide 21
Newton’s
nd
2
Law
If an unbalanced force acts on an object, the
object accelerates in the direction of the force.
The acceleration varies directly with the
unbalanced force. The acceleration varies
inversely with the mass of the object.
F = ma
Slide 22
Newton’s
for
rd
3
Law
every action force, there
exists a reaction force that is
equal in magnitude but
opposite in direction
Newton's third law states that
for every action force there is
an opposite and equal
reaction force.
Slide 23
Goal – The most efficient
dragster
Efficiency is the relationship between energy input
and energy output.
Efficiency is expressed as a percentage. The more
efficient a system, the less energy that is lost within
that system.
Slide 24
What causes your dragster to lose of
energy?
Drag
Friction
Excess Mass
Slide 25
Drag
When the CO2 dragster travels down the track, its frontal area
pushes against the air in front of it, and air flowing over the
body causes friction. This is known as drag.
How do we reduce drag?
Slide 26
Friction
Friction is a force that is
created whenever two
surfaces move or try to
move across each
other.
Friction always opposes
the motion or
attempted motion of
one surface across
another surface.
How do we reduce friction?
Slide 27
Excess Mass
The more mass a
dragster has, the
slower the
acceleration.
The force will be the
same for all
dragsters. It is
provided by the
CO2 cartridge.
How do we reduce mass?
Slide 28
Dragster Design Process
1) Clarify the problem
2) Research and investigate
3)Generate design
4) Choose a solution
5) Develop a prototype
6) Test and evaluate
7) Redesign the solution
Slide 29
Vocabulary
Carbon Dioxide
Force
Mass
Weight
Acceleration
Velocity
Kinetic Energy
Potential Energy
Refrigerant
Internal
Combustion
Engine
Physics
Efficiency
Drag
Friction
Inertia