#1UNIT D A force that acts to stretch and pull apart something.

#1UNIT D A force that acts to stretch and pull apart something. TENSION

#2UNIT D An object that provides support.

#2UNIT D An object that provides support. STRUCTURE

#3UNIT D This type of structure is made up of a rigid arrangement of parts.

#3UNIT D This type of structure is made up of a rigid arrangement of parts. FRAME

#4UNIT D This type of load is an external force that moves or changes with time.

#4UNIT D This type of load is an external force that moves or changes with time. DYNAMIC LOAD

#5UNIT D This type of structure has a solid outer surface, which may be rounded or flat in shape and a have a hollow inner area.

#5UNIT D This type of structure has a solid outer surface, which may be rounded or flat in shape and a have a hollow inner area. SHELL

#6UNIT D Balanced arrangement of mass on opposite sides of a line or a plane.

#6UNIT D Balanced arrangement of mass on opposite sides of a line or a plane. SYMMETRY

#7UNIT D A structure’s ability to maintain its position even when it is being acted upon.

#7UNIT D A structure’s ability to maintain its position even when it is being acted upon. STRUCTURAL STABILTY

#8UNIT D Refers to the pleasing appearance or effect that an object has because of its design.

#8UNIT D Refers to the pleasing appearance or effect that an object has because of its design. AESTHETICS

#9UNIT D A force that acts to squeeze an object together.

#9UNIT D A force that acts to squeeze an object together. COMPRESSION

#10UNIT D A push or a pull that tends to cause an object to change its movement or shape.

#10UNIT D A push or a pull that tends to cause an object to change its movement or shape. FORCE

#11UNIT D The three things which effect a force are:

#11UNIT D The three things which effect a force are: SIZE, DIRECTION, AND LOCATION

#12UNIT D This type of structure is formed from a solid piece of material.

#12UNIT D This type of structure is formed from a solid piece of material. SOLID

#13UNIT D The unit for measuring force.

#13UNIT D The unit for measuring force. NEWTON

#14UNIT D 1 kg = _______ Newtons.

#14UNIT D 1 kg = _______ Newtons. 10 NEWTONS

#15UNIT D A force that is applied on a structure by something else.

#15UNIT D A force that is applied on a structure by something else. EXTERNAL

#16UNIT D The imaginary point in an object where the downward force of gravity acts.

#16UNIT D The imaginary point in an object where the downward force of gravity acts. CENTER OF GRAVITY

#17UNIT D This type of load is the actual weight of the structure.

#17UNIT D This type of load is the actual weight of the structure. STATIC LOAD

#18UNIT D This type of bridge has tall towers at either end.

#18UNIT D This type of bridge has tall towers at either end. SUSPENSION

#19UNIT D A set of conditions a structure must meet after it is built to show it is performing to certain standards.

#19UNIT D A set of conditions a structure must meet after it is built to show it is performing to certain standards. PERFORMANCE REQUIREMENTS

#20UNIT D A force that acts to push parts that are in contact with each other in opposite directions.

#20UNIT D A force that acts to push parts that are in contact with each other in opposite directions. SHEAR

#21UNIT D When different kinds of internal forces act on a structure at the same time.

#21UNIT D When different kinds of internal forces act on a structure at the same time. COMPLEMENTARY FORCES

#22UNIT D The strongest structural shape.

#22UNIT D The strongest structural shape. TRIANGLE

#23UNIT D This tissue connects muscle to muscle.

#23UNIT D This tissue connects muscle to muscle. LIGAMENT

#24UNIT D A change of shape in any structural component, or in the structure itself, because the material is unable to resist the force acing on it.

#24UNIT D A change of shape in any structural component, or in the structure itself, because the material is unable to resist the force acing on it. DEFORMATION

#25UNIT D A process of gluing layers of material together to create a strong bond.

#25UNIT D A process of gluing layers of material together to create a strong bond. LAMINATION

#26UNIT D The ability of a material to be bent under force repeatedly and not fail.

#26UNIT D The ability of a material to be bent under force repeatedly and not fail. FLEXIBILTY

#27UNIT D The place at which two or more components of a structure are joined together.

#27UNIT D The place at which two or more components of a structure are joined together. JOINT

#28UNIT D An increase in this force increases the strength of a joint.

#28UNIT D An increase in this force increases the strength of a joint. FRICTION

#29UNIT D This tissue connects muscle to bone.

#29UNIT D This tissue connects muscle to bone. TENDON

#30UNIT D The limits within which the safety aspects of a structure are considered to be acceptable.

#30UNIT D The limits within which the safety aspects of a structure are considered to be acceptable. MARGIN OF SAFETY

#31UNIT D Forming material into wave- like ridges or folds

#31UNIT D Forming material into wave- like ridges or folds CORRUGATION

SCIENCE 7 UNIT D STRUCTURES AND FORCES ROCK & ROLL REVIEW