TRUE OR FALSE
FORCES
MATERIALS
MORE TRUE OR FALSE
100
Structures that are short and wide are LESS stable than structures that are tall and narrow
FALSE
100
This force is used when you change a straight object into a curved object.
Bending
100
In "The Three Little Pigs," the only house that could resist the forces of the Big bad Wolf's breath was made of this material.
Brick
100
Bridges are structures
True
200
The weight that is supported by a structure is called a LOAD
TRUE
200
This force is used when you push or squeeze an object.
Compression
200
When choosing materials to build with, it is important to think about the environmental forces that might affect them.
True
200
In a science experiment, the word for a prediction about the results is called a "Hypothesis"
True
300
The strongest and most stable shape to use when building a structure is a hexagon
FALSE
300
This force is used when you twist an object.
Torsion
300
This material should never be used for cooking in an oven
Plastic
300
The support used in a structure to resist the force of compression is called a buttress
FALSE
400
Only humans can build structures
FALSE
400
This force is being used when you pull on an object.
Tension
400
It is always better to choose the strongest and heaviest material when you're making anything
False
400
A curved support under a bridge is called an arch.
True
500
One way to make a structure more stable is to make the bottom heavier than the top.
TRUE
500
This word is used to describe what happens when a structure collapses because the load is too heavy.
Buckling
500
This material is mixed with water before it hardens to be used in many big, strong structures.
Concrete
500
The support used in a structure to resist the force of tension is called a tie.
True
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