PLTW POE Unit 2 Review

Front

A vector has both ____ and _____

Back

magnitude and direction

Front

The _______ of two or more vectors is the sum of the vectors.

Back

resultant

Front

When a member is being pushed together or crushed, this is known as a ______ force

Back

compression

Front

____________ occurs when a force is pulling a member apart.

Back

tension

Front

If a truss has the proper combination of joints and members, it is said to be

Back

statically determinate

Front

Consider the following forces, what additional force is needed to keep the block in static equilibrium? Options: 9N force pointing up, 9N force pointing down, 16N force pointing down, 16N force pointing up

Back

9N force pointing down

Front

If a structure is statically determinate it

Back

is mathematically solvable

Front

Supplies one reaction force, perpendicular to a surface in a truss

Back

Roller

Front

The 500 lb force causes a ____ moment about point A.

Back

negative

Front

If this truss is stable, the sum of the forces in the vertical direction

Back

equals 0.