Which statement is true about the beams? Beam A has a higher moment of inertia and will deform more., Beam A has a lower moment of inertia and will deform more., Beam B has a higher moment of inertia and will deform more., Beam B has a lower moment of inertia and will deform more.

Beam B has a lower moment of inertia and will deform more.

Calculate the moment using the equation $$M\ =\ F\ \cdot\ D_{\perp}$$ . Note: Distance should be converted to feet. Provide your answer as a whole number with no units.

The moment is calculated as the product of force and the perpendicular distance.

What would be the next logical step engineers would take to design and produce a smaller laptop computer that weighs less? Options: Build a new type of laptop battery, Research current laptop technology, Build a prototype computer

Research current laptop technology

Engineers plan on developing a new drill for use on oil rigs. What should the engineers do first in order to develop the new drill?

Find out features the drill will need by asking questions

What is the purpose of building a prototype?

to test the product and make sure that it is the best solution to the problem

How is strain calculated?

Elongation (δ) under load divided by the original Length (L₀)

How is stress calculated?

Divide load (F) by the original test sample cross-sectional area (A₀).

PLTW POE Final Review Flashcards

Student preview

54 questions

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1.

FLASHCARD QUESTION

Front

The formula to calculate the x-bar of this shape.

Back

2.

FLASHCARD QUESTION

Front

The formula to calculate the x-bar of this shape.

Back

3.

FLASHCARD QUESTION

Front

The formula to calculate the y-bar of this shape.

Back

4.

FLASHCARD QUESTION

Front

The formula to calculate the x-bar of this shape.

Back

r

5.

FLASHCARD QUESTION

Front

How do you calculate the area of this shape?

Back

6.

FLASHCARD QUESTION

Front

Calculate the x-bar for this shape. Round your answer to the a whole number, i.e. 0).

Back

13

7.

FLASHCARD QUESTION

Front

Calculate the x-bar for this shape. Round your answer to the tenths place (one number after decimal point, i.e. 0.0).

Back

4.3

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