Oluwaseun Oyedele
Quiz by , created more than 1 year ago

Grade 7 Science (Unit D) Quiz on Section 2.3 & 2.4 quiz, created by Oluwaseun Oyedele on 06/02/2020.

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Oluwaseun Oyedele
Created by Oluwaseun Oyedele over 4 years ago
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Section 2.3 & 2.4 quiz

Question 1 of 8

1

Which answer describes compression?

Select one of the following:

  • Compression is a force that acts to squeeze an object

  • Compression is a force that acts to stretch an object

  • Compression is a force that acts to push objects that are in contact in opposite directions.

Explanation

Question 2 of 8

1

Tension is a force that acts to push objects that are in contact with each other in opposite directions.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 8

1

Bending an object is an example of

Drag and drop to complete the text.

    complementary forces
    shear
    structural failure

Explanation

Question 4 of 8

1

An arch can support large loads because _________.

Select one of the following:

  • It spreads the weight throughout it

  • it is

  • it can withstand gravity

Explanation

Question 5 of 8

1

A beam

Select one or more of the following:

  • is a flat structure that is supported on each end

  • bends when there is too much load in the middle

Explanation

Question 6 of 8

1

What is structural stress?

Select one of the following:

  • when all the forces are acting on an object

  • when there is repeated abnormal use of an object.

Explanation

Question 7 of 8

1

What is structural fatigue?

Select one of the following:

  • when there is repeated abnormal use of an object

  • when a structure can no longer withstand acting on it

Explanation

Question 8 of 8

1

What is structural failure?

Select one of the following:

  • when an object can no longer withstand forces

  • when all forces are acting on an object at the same time

Explanation

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