unit-3🥚🥚

Question 1

define deformation.😭😩🤪💀

Answer 1

it is the change in the shape or size of a structure or material when subjected to external forces or loads. It can occur in various ways including stretching, compressing, bending, twisting, or a combination of all of them. It can be elastic meaning once the force is removed it can return to its original shape or it can be plastic where it undergoes permanent changes in shape.

Question 2

define hooke’s law.😭😩🤪💀

Answer 2

it states that the force applied to a string is directly proportional to the amount of deformation that it undergoes as long as the material of the spring remains within its elastic limit

Question 3

what is the formula for hooke’s law??😭😩🤪💀

Answer 3

F=-Kx
where F is the force applied, K is the spring constant and x is the amount of deformation

Question 4

how do different structures distribute force??😭😩🤪💀

Answer 4

different structures distribute force in various ways based on their design and the materials. Force distribution and deformation are key considerations in the fields of engineering architecture and physics

Question 5

what are the key factors that affect force in a structure??😭😩🤪💀

Answer 5

Key Factors that Affect Force in Structures are:
1. Material Properties
2. Geometry
3. Load Distribution

Question 6

define beam.😭😩🤪💀

Answer 6

Beams: A beam is like a strong stick that can handle being squished and stretched to support heavy stuff without breaking. It’s an important part of how buildings and other structures stay up. Beams are typically used to support loads that apply force in a direction perpendicular to their longitudinal axis. Beams distribute the force by transferring it along their length, resulting in bending deformation. Examples: Bridges, and building

Question 7

define trusses.😭😩🤪💀

Answer 7

Trusses: A truss is like a framework made of triangles. Triangles are strong shapes. So, imagine a bunch of triangles connected to form a structure. Trusses are used in bridges, and even things like cranes to give them strength and support. They are highly efficient in distributing force along the members.

Question 8

define arch structure.😭😩🤪💀

Answer 8

An arch is a shape that looks like a curved bridge or a doorway. it’s a strong way to support weight. When you push down on the top of the arch, the force gets distributed along the curved shape, and it can hold a lot of weight without collapsing.it is used to make buildings and bridges stable

Question 9

define cantilever shape.😭😩🤪💀

Answer 9

Cantilever structures are supported at one end and project horizontally into space. They distribute force by using the bending principle, where the fixed end resists compression, and the projecting end is in tension. Deformation in cantilever structures leads to the bending of the projecting portion.· Examples: overhanging bridges, and diving boards.

Question 10

state the general guidelines.😭😩🤪💀

Answer 10

General Guidelines:
· For cantilevered balconies, a typical safe extension is around 1.5 to 2 meters.
· For supported balconies, extensions can go beyond 3 meters but may require external supports like columns or braces.

Question 11

define net force.😭😩🤪💀

Answer 11

it is the result of combining all the force exerted on an object

Question 12

define balanced force.😭😩🤪💀

Answer 12

they have equal magnitude but opposite directions causing no change in an object’s motion. Its net force is equal to 0

Question 13

define unbalanced force.😭😩🤪💀

Answer 13

they have a net magnitude, causing the object to have a change in its motion. Its net force is not equal to 0