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

2. #1UNIT D A force that acts to stretch and pull apart something. TENSION

3. #2UNIT D An object that provides support.

4. #2UNIT D An object that provides support. STRUCTURE

5. #3UNIT D This type of structure is made up of a rigid arrangement of parts.

6. #3UNIT D This type of structure is made up of a rigid arrangement of parts. FRAME

7. #4UNIT D This type of load is an external force that moves or changes with time.

8. #4UNIT D This type of load is an external force that moves or changes with time. DYNAMIC LOAD

9. #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.

10. #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

11. #6UNIT D Balanced arrangement of mass on opposite sides of a line or a plane.

12. #6UNIT D Balanced arrangement of mass on opposite sides of a line or a plane. SYMMETRY

13. #7UNIT D A structure’s ability to maintain its position even when it is being acted upon.

14. #7UNIT D A structure’s ability to maintain its position even when it is being acted upon. STRUCTURAL STABILTY

15. #8UNIT D Refers to the pleasing appearance or effect that an object has because of its design.

16. #8UNIT D Refers to the pleasing appearance or effect that an object has because of its design. AESTHETICS

17. #9UNIT D A force that acts to squeeze an object together.

18. #9UNIT D A force that acts to squeeze an object together. COMPRESSION

19. #10UNIT D A push or a pull that tends to cause an object to change its movement or shape.

20. #10UNIT D A push or a pull that tends to cause an object to change its movement or shape. FORCE

21. #11UNIT D The three things which effect a force are:

22. #11UNIT D The three things which effect a force are: SIZE, DIRECTION, AND LOCATION

23. #12UNIT D This type of structure is formed from a solid piece of material.

24. #12UNIT D This type of structure is formed from a solid piece of material. SOLID

25. #13UNIT D The unit for measuring force.

26. #13UNIT D The unit for measuring force. NEWTON

27. #14UNIT D 1 kg = _______ Newtons.

28. #14UNIT D 1 kg = _______ Newtons. 10 NEWTONS

29. #15UNIT D A force that is applied on a structure by something else.

30. #15UNIT D A force that is applied on a structure by something else. EXTERNAL

31. #16UNIT D The imaginary point in an object where the downward force of gravity acts.

32. #16UNIT D The imaginary point in an object where the downward force of gravity acts. CENTER OF GRAVITY

33. #17UNIT D This type of load is the actual weight of the structure.

34. #17UNIT D This type of load is the actual weight of the structure. STATIC LOAD

35. #18UNIT D This type of bridge has tall towers at either end.

36. #18UNIT D This type of bridge has tall towers at either end. SUSPENSION

37. #19UNIT D A set of conditions a structure must meet after it is built to show it is performing to certain standards.

38. #19UNIT D A set of conditions a structure must meet after it is built to show it is performing to certain standards. PERFORMANCE REQUIREMENTS

39. #20UNIT D A force that acts to push parts that are in contact with each other in opposite directions.

40. #20UNIT D A force that acts to push parts that are in contact with each other in opposite directions. SHEAR

41. #21UNIT D When different kinds of internal forces act on a structure at the same time.

42. #21UNIT D When different kinds of internal forces act on a structure at the same time. COMPLEMENTARY FORCES

43. #22UNIT D The strongest structural shape.

44. #22UNIT D The strongest structural shape. TRIANGLE

45. #23UNIT D This tissue connects muscle to muscle.

46. #23UNIT D This tissue connects muscle to muscle. LIGAMENT

47. #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.

48. #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

49. #25UNIT D A process of gluing layers of material together to create a strong bond.

50. #25UNIT D A process of gluing layers of material together to create a strong bond. LAMINATION

51. #26UNIT D The ability of a material to be bent under force repeatedly and not fail.

52. #26UNIT D The ability of a material to be bent under force repeatedly and not fail. FLEXIBILTY

53. #27UNIT D The place at which two or more components of a structure are joined together.

54. #27UNIT D The place at which two or more components of a structure are joined together. JOINT

55. #28UNIT D An increase in this force increases the strength of a joint.

56. #28UNIT D An increase in this force increases the strength of a joint. FRICTION

57. #29UNIT D This tissue connects muscle to bone.

58. #29UNIT D This tissue connects muscle to bone. TENDON

59. #30UNIT D The limits within which the safety aspects of a structure are considered to be acceptable.

60. #30UNIT D The limits within which the safety aspects of a structure are considered to be acceptable. MARGIN OF SAFETY

61. #31UNIT D Forming material into wave- like ridges or folds

62. #31UNIT D Forming material into wave- like ridges or folds CORRUGATION

63. SCIENCE 7 UNIT D STRUCTURES AND FORCES ROCK & ROLL REVIEW