Structures and Forces Unit Exam

In a structure, the function of a beam is to ____________.

• provide strength and distribute the force of the load

• provide an interesting look or texture

• distribute force from the load to the ground

• join two materials together without the use of glue

What makes igloos strong?

• They are natural structures.
• The igloo is a mass structure.
• The coldness makes everything stay in a solid state.
• The forces acting on the igloo are distributed equally in all directions.

The term "load" refers to _______________.

• an external force on a structure
• a balanced arrangement of mass
• the necessary resistance of a structure
• a realistic design of a structure's forces

The weight of the equipment of a bus ( including all the parts) is called the _____________.

• human factor
• riding mass
• dead load
• live load

Compression is an example of a pulling force.

• True
• False

Cars driving across a bridge are an example of a live load.

• True
• False

You see a crane carrying a load of supplies at a construction site. The rope holding the supplies to the crane is experiencing _____________. 

• compression 
• tension
• buckle
• torsion

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The force that results when the surface of one object moves against the surface of another is referred to as _____________.

• resistance 
• gravity
• Tension
• friction

A force that is applied on a structure by something else:

• Internal Force

• External Force

• Secondary Force

• Force

A type of force that pulls everything down towards the ground

• Gravity

• Friction

• Gas

• Oil