Show:
TOOLS
REPRESENTATION OF OBJECTS
TECHNOLOGICAL PROPERTIES
PHYSICAL PROPERTIES
5 BASIC FORCES
100
HAMMER
What is the tool that you use to put nails into wood
100
30-60-90 set square 45-45-90 set square
What is the name of the tools we use to draw parallel and perpendicular lines? name the exact name of each one
100
fusibility
some materials can be easily melted, they go from solid to liquid and can be poured into moulds. This property is called...
100
No, it's plastic
It's Plasticine an elastic material?
100
two forces acting in the same direction
explain compression
200
a file and a rasp
What two long tools do you use to polish wood?
200
a hard pencil
What is the best pencil to use when drawing views: a soft, a medium or a hard pencil?
200
weldability
Some materials like steels and plastics can be easily welded. This is called...
200
Hardness
The property that indicates the resistance to being scratched, that follows a scale that goes from chalk to diamond, is called...
200
tension
two forces acting in opposite directions is called...
300
a jig saw
What electric tool do you use to cut chipboard, big pieces of plywood, etc.?
300
the overhead view
What is the view that is always drawn under the front view?
300
ductility
some materials can be stretched to form threads. This is called...
300
Fragile materials
How do we call the materials that break very easily if they are hit?
300
torsion
two forces rotating on the same axis but on different directions is called
400
scroll saw
What is the name of the electric machine you used to cut plywood?
400
height
The front and side views are the same: width, height or depth?
400
malleability
some materials can be easily flattened into sheets. This property is called...
400
Tenacity
What is the property that allows materials to be hit without breaking?
400
shear
What is the force that generate a pair of scissors when cutting paper?
500
Drill press
What is the name of the electric machine that we use to make holes and that is standing on the work bench?
500
depth
The overhead and side views are the same ...
500
metals and plastics
Which two types of materials show all the four technological properties?
500
D = m / V Density= mass (kg)/ volume (l, cm3...)
What is the formula of density? say also what the letters mean and an example of possible units (e.g. meters, seconds...).
500
Bending
What is the main force that make lots of books on a bookshelf. Explain or represent also the forces that are acting.