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Total questions: 40
Worksheet time: 23mins
What type of tree grows faster?
Hardwood
Softwood
Which of these is a hardwood?
Pine
Spruce
Cedar
Oak
Which box has a higher density?
A
B
They are the same
Steel generally speaking is made of
iron and carbon
copper and iron
tin and carbon
aluminum and nickel
Brass is an alloy made of
copper and zinc
copper and tin
copper and nickel
copper and aluminum
Bronze is an alloy made of
aluminum and magnesium
copper and tin
lead and tin
copper and nickel
Steel can become stainless when alloyed with _____.
chromium and nickel
copper and zinc
tin and lead
iron aand carbon
A mixture of metals is called an (a) .
In steel, iron is mixed with small amounts of non-metal, _______ .
Copper
Carbon
Diamonds
Wood
Thermosetting plastic is
a plastic that can be repeatedly reheated and remoulded.
a plastic that can be distorted under pressure but will return to its original shape after pressure is released.
a plastic that can not be repeatedly reheated and remoulded.
Which plastic does this recycling symbol represent?
PVC
PET
PP
HDPE
What is tension
A pushing/ compressing force
A normal force
A pulling/stretching force
An abnormal force
Maximum stress in engineering stress-strain diagram is called
Yield strength
Breaking strength
Tensile strength
Young's Modulus
Stress =
Load (P) / Area (A)
Force (F) / Area (A)
Area (A) / Force (F)
Area (A) / Load (P)
Strain =
Initial Length / Change in Length
Initial Length / Final Length
Change in Length / Initial Length
Change in Length / (Final Length - Initial Length)
Tensile strength is
The ability of a material to resist a pulling, stretching force.
Required in a window
The ability of a material to resist a squashing force
The ability of a material to be drawn into a wire
The rope between the tug and the ship would need to have good
Ductility
Hardness
Tensile strength
Malleability
Malleability is the ability of a material to
withstand impact.
resist indentation, abrasion and wear.
be plastictally deformed by a comprehensive force.
be plastically deformed by a tensile force.
The drill would need to have what property?
Malleability
Ductility
Conductivity
Hardness
Toughness is
the ability of a material to resist indentation, abrasion and wear.
the ability of a material to withstand impact.
carry an electrical charge.
the ability to be draw into a wire.
An important property of this safety hat is?
Hardness
Ductility
Tensile strength
Toughness
Ductility is
when a material can be plastically deformed into shape using a compresive force.
the ability of a material to resist fracture from a tensile force
when a material can be plastically deformed into shape using a tensile force.
the ability of a material to resist fracture from a compresive force.
Coniferous or Deciduous?
Coniferous
Deciduous
Coniferous or Deciduous?
Coniferous
Deciduous
Which type of tree has cones as seeds?
Coniferous
Deciduous
Which type of tree are fruit trees?
Coniferous
Deciduous
Coniferous or Deciduous?
Coniferous
Deciduous
Which type of trees make soft wood?
Coniferous
Deciduous
Man made product that has several layers.
MDF
Chip Board
Plywood
OSB
What are plastics made from?
sand
trees
oil
salt
The most used plastic of them all is...
PVC (Polyvinyl Chloride)
HDPE (High-Density Polyethylene)
Nylon
PET (Polyethylene terephthalate)
