Quiz 1.5 Forces and Structures

The image shows a test of a bridge's ability to support the load without collapsing. It is a test of ___.

• stabiliity

• stretchability

• tensibility

• compressibility

Which of the following is an example of a dead load in London's Westminster Palace?

• The clocks on the sides of the tower

• The visitors that climb the tower

• The buses that cross the bridge

• The clouds in the sky above the palace

The figure exemplifies a type of force on a structure. It is a ___.

• tension force

• torsion force

• compression force

• shear force

Observe the figure. This machine's primary function is exerted by ___.

• compression

• torsion

• shear

• tension

The toothpick structure shown is resistant because its design incorporates strong shapes like ___.

• triangles

• trapezoids

• circles

• pentagons

We know the family is working because they apply a force that ___.

• makes them happy

• makes them move

• makes them lose weight

• makes them release stress

Mariano pushes a block of 15 kg distance of 4 m with a 50-N force. How much work did he do?

• 60 J

• 200 J

• 3000 J

• 750 J

Ms. Polinaris lifts a 200-N bag from the floor to a table with 300 J of work. How high is the table?

• 1.5 m

• 0.7 m

• 1.2 m

• 1 m

How much work is Nayeska doing while holding the 1-kg book for 5 minutes?

• 0 J

• 5 J

• 0.2 J

• 6 J

Kevin is carrying a wheelbarrow, which is an example of a ___.

• first-class lever

• second-class lever

• third-class lever

• robotic lever