Physics
This fundamental force keeps us grounded on Earth.
What is gravity?
This type of plastic can be melted and reshaped multiple times.
What is thermoplastic?
The channel that directs molten plastic to the mold cavity.
What is a runner?
This is the slope-intercept equation for a line
What is y = mx + b?
Echo expanded into this city, which is now its headquarters.
What is Indianapolis?
The force that opposes the motion of objects in contact with each other.
What is friction?
The raw material used to make most plastics comes from this natural resource.
What is crude oil or petroleum?
The process of forcing air out of the mold.
What is venting?
The value of pi rounded to 5 decimal places.
What is 3.14159?
Echo Engineering was founded in this year.
What is 1966?
The phenomenon where light bends as it passes through different materials.
What is refraction?
Thermoplastic Polyurethane is better know by this abbreviation.
What is TPU?
This is the most commonly used thermoplastic in injection molding.
What is polypropylene?
The derivative of x^2 with respect to x is this.
What is 2x?
Echo Engineering was originally started in this US state.
What is California?
The total energy of a system is always conserved, according to this law.
What is the First Law of Thermodynamics?
This test determines how well a plastic resists impact.
What is an Izod or Charpy test?
The time it takes for a molded part to solidify before ejection.
What is cooling time?
This branch of mathematics deals with the relationships between the angles and sides of triangles.
What is trigonometry?
Echo's original focus was on providing solutions for this type of finishing process.
What is masking?
The change is frequency of a wave due to the motion of the source or observer is known as this effect.
What is the Doppler effect?
This process aligns polymer chains, increasing strength, and is used in making plastic films.
What is orientation?
The force required to keep the mold closed during injection.
What is clamping force?
The formula for the volume of a cylinder.
pi*r2*h
Echo acquired Ammex Plastics in this year.
What is 2017?