4.39-4.41 UNION, SUBTRACT, & INTERSECT
Authored by Jeff Rodman
Design
9th - 12th Grade
Used 2+ times
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12 questions
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1.
MATCH QUESTION
1 min • 1 pt
Match the following commands with their functions
INTERSECT
Removes overlapping volume of 3D objects from another.
3D UNIONS
Creates a 3D object from overlapping volume of others.
SUBTRACTS
Combines two or more 3D objects into one.
2.
CATEGORIZE QUESTION
3 mins • 1 pt
Assign these examples to the correct categories according to their commands.
Groups:
(a) Union
,
(b) Subtract
,
(c) Intersect
An architectural model merging several solid structures
A hollow cube (imagine a box with no top)
A tool with a grip created by removing material
A chair model developed by blending different geometrical shapes
A sculpture created by merging two solids.
A pipe system with interconnected sections.
3.
CATEGORIZE QUESTION
3 mins • 1 pt
Groups:
(a) The Statue of Liberty
,
(b) George Nelson Clocks
,
(c) Petra, Jordan
Mid-century clocks uniquely shape via union and subtraction principles.
Petra's rock-cut architecture stunningly showcases the subtractive design method.
Statue of Liberty unifies multiple components, exemplifying 'union' principle beautifully.
4.
DRAG AND DROP QUESTION
1 min • 1 pt
Type (a) to use the UNION command.
Type (b) to use the SUBTRACT command.
Type (c) to use the INTERSECT command.
5.
REORDER QUESTION
1 min • 1 pt
Reorder the following steps for the subtract command
Press enter to complete the command.
Specify the 3D solids, surfaces, or regions to subtract.
Type 'SUB' or select 'SUBTRACT' command
Specify the 3D solids, surfaces, or regions to keep or be modified by subtraction.
6.
MATCH QUESTION
1 min • 1 pt
Match the following misconceptions and solutions
When do I use 'intersect' command?
Select the object to keep first, press enter, then select the object to remove, enter again.
Why are my objects connected?
Subtract' merges; use 'separate' to disconnect.
Why isn't subtraction working?
Use to retain overlapping regions between objects.
7.
OPEN ENDED QUESTION
3 mins • 1 pt
Name three products designed using subtract or union commands.
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