Structures & forces topics 6-7

What methods help structures withstand forces? (more than one correct answer)

• Distribute the load throughout the structure.

• Direct forces along the angled components of the structures.

• Shape the parts of the structure to withstand forces.

• Add stability to the structure.

• Make the structure with certain materials.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

A rectangular frame is...

• easy to build, weak to forces.

• difficult to build, strong against forces.

• A-frame structure that is sturdy.

• A structure that supports buildings only.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-ETS1-1

What two things help structures against forces that pull and push them apart? (Rectangular frame structures)

• Triangle shapes.

• Vertical posts.

• Extra support.

• Corrugations

• Cantilevers.

Tags

NGSS.MS-ETS1-4

Horizontal load-bearing beams...

• Have simple construction, but may bend in the middle.

• Have detailed construction, but are non-resistant to forces.

• Are very sturdy, but are expensive to build.

• Are costly, but experiences trouble with loads.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-1

What is the solution for structures that may bend in the middle?

• Arches, Cantilevers, and braces.

• Beams, Triangles, and corrugations.

• Corrugations, Cantilevers, and braces.

• I, T, L and box beams.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Large solid beams are...

• Very strong and solid, but very hard and expensive.

• Simple in construction, but may bend in the middle.

• Easy to build, but are weak to bending and pulling.

• Easy to build, but bad when it comes to aesthetics.

Tags

NGSS.MS-PS2-2

To fix the problem of very hard and expensive materials.

• Use either Clilindrical collums, I, T, L and box beams, corrugations, animal bones.

• Use either Brace, Cantalevers or arches.

• Use either triangles or vertical posts.

• Use either cantilevers, animal bones or Braces.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-1

Friction is a force that ______ against movement.

Friction can help prevent structures from falling apart. We use ______ to INCREASE friction.

• Fasteners

• Screws

• Wheels

• Corrugations

Are objects more stable when they have a larger surface underneath or a smaller surface?

• Larger

• Smaller