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Grade 7 Science Unit 4 Study Quiz - Structures

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Science 7 Unit 4 Quiz - Structures

Question 1 of 17

1

Which 3 of the following are more specific types of structures?

Select one or more of the following:

  • Natural Structures

  • Mass Structures

  • Manufactured Structures

  • Frame Structures

  • Shell Structures

Explanation

Question 2 of 17

1

Shell structures are hollow inside.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 17

1

In a frame structure, the skeleton supports the weight of the other parts of the structure.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 17

1

Mass structures are made by...

Select one of the following:

  • Hammering wood together

  • However, only it has to be large and heavy

  • However, but the materials have to be piled up

Explanation

Question 5 of 17

1

Planning is extremely important when building a structure. Which of the following things need to be examined in planning?

Select one or more of the following:

  • Safety requirements

  • Beauty

  • Funcion

  • Materials

  • Colour and Texture

  • Fasteners or joints

Explanation

Question 6 of 17

1

What are some of the things constructors need to think about while choosing a material for the structure?

Select one or more of the following:

  • Cost

  • How it feels

  • Enviromental Impact

  • Appearance

  • How much energy it uses

Explanation

Question 7 of 17

1

Joints can be...

Select one or more of the following:

  • Rigid

  • Soft

  • Mobile

  • Used by anyone

Explanation

Question 8 of 17

1

Mass is...

Select one of the following:

  • How large an object is

  • The amount of particles or matter in an object

  • How heavy an object is

  • An object covered in cookie dough

Explanation

Question 9 of 17

1

According to the lesson notes, FORCE can do all of the following EXCEPT for...

Select one of the following:

  • Start an object moving with a push or pull

  • Slow down an object

  • Cause a change in direction

  • Stop an object moving in less than .14 seconds

Explanation

Question 10 of 17

1

The Newton (N) unit is used to measure mass.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 17

1

Which of these is NOT true?

Select one of the following:

  • Tension means STRETCHING

  • Compression means CRUSHING

  • Torsion means TWISTING

  • Sheer means TEARING

  • Bending means ROCKING

Explanation

Question 12 of 17

1

An internal force acts on the outside of a structure. An external force acts on the inside of a structure.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 17

1

Live loads are things/people/weather etc that can act on the structure. Dead loads are the structure itself.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 17

1

Friction is a force that speeds up motion.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 17

1

If a structure is STABLE, what does that mean?

Select one of the following:

  • It is less likely to tip over

  • It is not possible for it do get destroyed

  • It is a place where animals live

Explanation

Question 16 of 17

1

What is the "Centre of Gravity"?

Select one of the following:

  • Where a body's mass is concentrated

  • The center of the universe

  • The middle of the earth

  • The place in a structure where particles move the most

Explanation

Question 17 of 17

1

A gyroscope's axis is stabalized, so it never points in the same direction.

Select one of the following:

  • True
  • False

Explanation

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