Log inSign up for FREE
Library

Structures and Forces Grade 7 Unit Final

Last updated over 3 years ago
26 questions
Complete the following statements using the correct terminology from our unit.
1

A _________________________ is an object that provides support.

1

Folding your hand into a fist is like making a _________________ structure.

1

The pleasing appearance of a structure refers to its ______________________ quality.

1

Forces are measured in units called_________________.

2

The two types of loads are ______________ and ________________.

1

_______________________ occurs when a strucutre collapses.

1

A nail and rivet depend on the force of _________________ to make a joint in a structure.

1

A _______________ is an example of a freely movable joint.

1

A __________________ works by resistinig tension in a structure.

Answer the following questions using full and complete statements with proper punctuation. When necessary be sure to provide supporting details in your answers.
4

What is the difference between structural strength and structural stability?

4

Give one example each of a shell strucutre and a frame structure and describe how the two structures are different from each other.

4

Compare a strucutre in the natural world with a strucutre found in the human-built envirronment. How are the two strucutres the same? How are they different?

3

Describe three factors to consider when determing what effect a force will have on a strucutre.

3

Identify the three types of internal forces and provide an example of each force.

2

How is bending an internal force?

2

What two main factors must you consider when building a strucuture that will not fail?

6

A building has an addition put on top of it. The additional load on the building eventually causes the building to collapse. Describe what might have happened, using the words "structural stress", "fatigue" and "failure."

2

Describe a material that is unique to the human body and explain why this material is appropriately suited for its function within the body.

1

In a structure, what is meant by the "margin of safety"?

2

Give two examples of how you can strengthen a material.

4

When evaluating a strucutral design from an overall perspective, what four factors should you consider?

A group of students were building a tower out of newspaper. Besides newspaper, all they had was tape. By loosely rolling up the newspaper into three long beams they tried to make the tallest tower possible. Unfortunately they were not successful in getting the strucutre to stand up.
Imagine you were given the same challenge with the same materials. Answer the following questions.
2

How would you design your beams?

2

How would you make your joints?

2

What overall strucutral design would you use? Draw a diagram to show what your strucutre would look like.

2

How would you ensure the tower was structurally stable?

2

How would you ensure the tower was strucuturally strong?

Before you click on that submit button, you may want to watch these videos just to make sure you have answered all of the questions completely. There may be some valuable information that you could add to your answers.