Science 7 - Structures and Forces
The vocabulary terms from Science 7, Structures and Forces.
Terms in this set (30)
its main purpose of a structure or an object.
a push or pull, or anything that causes a change in the motion of an object
the weight of the structure itself
an object or structure not made by people
an object or a structure that is made by humans
the shape and size of a structure and the materials of which is it composed. How a structure looks.
a structure, natural or manufactured, that is made by the piling up of material of the same kind; examples include a pyramid and a snow fort
a type of structure in which a skeleton of materials that has empty space & supports the weight of the other parts
a type of structure that is shaped with a curved outer layer of material and that requires no internal frame
The properties of an object that make it pleasing to the senses
margin of safety
the need for something to perform as expected for a long time, so that people's safety and health are not at risk.
the characteristics of materials; every material has its own unique set of these; examples include colour, odour, and density
the primary measurement of mass
a device to measure mass
the standard unit of force
a force that acts on an object from the inside
the load that is the weight of a structure itself
the force or forces that act in or on a structure but are not part of the structure; examples include the wind, and the weight of people
a force of pushing materials together
a force of pulling materials apart
a section of compressed material that breaks apart
to fold or break under a compressive force and tension force
a force that acts on a material by twisting its ends in opposite directions
center of gravity
the point at which all of the gravitational force of an object may be considered to act
a force that act on a structure from the outside
the force of gravity acting on the mass of an object
the total amount of matter in an object
The weight of movable objects such as people, furnishings, machines, vehicles, and goods in or on a structure.
the design of materials and structures that are modelled on things found in nature
having the same shape, size, and position on both sides of a dividing line