Sci. 8 - Mechanical Systems: 3.1 Evaluating Mechanical Devices

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FIRST, view the video below and THEN, read over the information that follows. Once that has been accomplished, complete the assignment that follows.

During the research phase, when a device is improved upon, certain criteria are taken into account. Of the criteria listed below, which would be the least important ...

function

efficiency

effectiveness

convenience

Mechanical devices are evaluated so that the consumer who is ultimately going to use it can make a better choice. Another important reason to carefully evaluate a mechanical device is to ...

determine how it can be improved

lower its cost

make it more fashionable

find its esthetic value

The design of mountain bikes to handle the rough terrain they would be used in, is considered to be
evaluating a function because of this influence ...

mass appeal

mass demand

environment

ergonomics

Opening a can has evolved from the earliest cans which were made from iron in 1810. These can were
opened by using a ...

church key

hammer and chisel

push button

removable tab

Four distinct designs were used in the design and development of opening mechanisms for aluminum cans. To get the liquid out of the can, one large hole or two smaller holes are needed. If two holes are needed, the first hole is designed to let air into the can, and the second hole is designed to ...

create pressure

restrict flow

let the fluid out

be just for show

The "church key" was the first practical design for opening a can. It was a simple machine that multiplied the force needed to open the can. The simple machine it was designed after was the ...

wedge

1st class lever

2nd class lever

3rd class lever

Another simple machine was built into the removable tab top. It consisted of a small ring that acted like a lever and would make the necessary hole by removing the tab from the can. This was a huge
improvement, but it also created a huge problem. The problem it created was ...

scientific

environmental

industrial

commercial

By pressing on one of the buttons first - to release the pressure of the contents - before pressing on the second one - to have a hole large enough to drink out of - button cans were less problematic. The pressure in the can came from ...

atmospheric pressure

force applied to the button

the contents of the can

external force causing internal pressure

Environmental concerns created further improvements in can-opening devices throughout the 20th century. The ‘ecology top’ was the name given to the ...

Church Key

Removable Tab Top

Button Top

Non-removable Tab Top

In a real evaluation of a mechanical device, designers always begin with ...

a list of things that they want in the device

ideas of how to start mass production of the device

cost-effectiveness issues and marketing strategies

ways that safety and efficiency can be improved upon

Explain the difference between the function and the design of a device. (pg. 306)

What personal and societal factors influenced the changes in devices used to open aluminum cans? (pg. 308)

During the research phase, when a device is improved upon, certain criteria are taken into account. Of the criteria listed below, which would be the least important ...

function

efficiency

effectiveness

convenience

Mechanical devices are evaluated so that the consumer who is ultimately going to use it can make a better choice. Another important reason to carefully evaluate a mechanical device is to ...

determine how it can be improved

lower its cost

make it more fashionable

find its esthetic value

The design of mountain bikes to handle the rough terrain they would be used in, is considered to be
evaluating a function because of this influence ...

mass appeal

mass demand

environment

ergonomics

Opening a can has evolved from the earliest cans which were made from iron in 1810. These can were
opened by using a ...

church key

hammer and chisel

push button

removable tab

Four distinct designs were used in the design and development of opening mechanisms for aluminum cans. To get the liquid out of the can, one large hole or two smaller holes are needed. If two holes are needed, the first hole is designed to let air into the can, and the second hole is designed to ...

create pressure

restrict flow

let the fluid out

be just for show

The "church key" was the first practical design for opening a can. It was a simple machine that multiplied the force needed to open the can. The simple machine it was designed after was the ...

wedge

1st class lever

2nd class lever

3rd class lever

Another simple machine was built into the removable tab top. It consisted of a small ring that acted like a lever and would make the necessary hole by removing the tab from the can. This was a huge
improvement, but it also created a huge problem. The problem it created was ...

scientific

environmental

industrial

commercial

By pressing on one of the buttons first - to release the pressure of the contents - before pressing on the second one - to have a hole large enough to drink out of - button cans were less problematic. The pressure in the can came from ...

atmospheric pressure

force applied to the button

the contents of the can

external force causing internal pressure

Environmental concerns created further improvements in can-opening devices throughout the 20th century. The ‘ecology top’ was the name given to the ...

Church Key

Removable Tab Top

Button Top

Non-removable Tab Top

In a real evaluation of a mechanical device, designers always begin with ...

a list of things that they want in the device

ideas of how to start mass production of the device

cost-effectiveness issues and marketing strategies

ways that safety and efficiency can be improved upon

Sci. 8 - Mechanical Systems: 3.1 Evaluating Mechanical Devices

Sci. 8 - Mechanical Systems: 3.1 Evaluating Mechanical Devices

FIRST, view the video below and THEN, read over the information that follows. Once that has been accomplished, complete the assignment that follows.

Explain the difference between the function and the design of a device. (pg. 306)

What personal and societal factors influenced the changes in devices used to open aluminum cans? (pg. 308)

FIRST, view the video below and THEN, read over the information that follows. Once that has been accomplished, complete the assignment that follows.

During the research phase, when a device is improved upon, certain criteria are taken into account. Of the criteria listed below, which would be the least important ...

Mechanical devices are evaluated so that the consumer who is ultimately going to use it can make a better choice. Another important reason to carefully evaluate a mechanical device is to ...

The design of mountain bikes to handle the rough terrain they would be used in, is considered to beevaluating a function because of this influence ...

Opening a can has evolved from the earliest cans which were made from iron in 1810. These can wereopened by using a ...

The "church key" was the first practical design for opening a can. It was a simple machine that multiplied the force needed to open the can. The simple machine it was designed after was the ...

Another simple machine was built into the removable tab top. It consisted of a small ring that acted like a lever and would make the necessary hole by removing the tab from the can. This was a hugeimprovement, but it also created a huge problem. The problem it created was ...

By pressing on one of the buttons first - to release the pressure of the contents - before pressing on the second one - to have a hole large enough to drink out of - button cans were less problematic. The pressure in the can came from ...

Environmental concerns created further improvements in can-opening devices throughout the 20th century. The ‘ecology top’ was the name given to the ...

In a real evaluation of a mechanical device, designers always begin with ...

Explain the difference between the function and the design of a device. (pg. 306)

What personal and societal factors influenced the changes in devices used to open aluminum cans? (pg. 308)

The design of mountain bikes to handle the rough terrain they would be used in, is considered to be
evaluating a function because of this influence ...

Opening a can has evolved from the earliest cans which were made from iron in 1810. These can were
opened by using a ...

Another simple machine was built into the removable tab top. It consisted of a small ring that acted like a lever and would make the necessary hole by removing the tab from the can. This was a huge
improvement, but it also created a huge problem. The problem it created was ...