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2878049
Science 7 Unit 4 Quiz - Structures
Description
Grade 7 Science Unit 4 Study Quiz - Structures
Quiz by
MexiPeanut
, updated more than 1 year ago
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Created by
MexiPeanut
about 9 years ago
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Resource summary
Question 1
Question
Which 3 of the following are more specific types of structures?
Answer
Natural Structures
Mass Structures
Manufactured Structures
Frame Structures
Shell Structures
Question 2
Question
Shell structures are hollow inside.
Answer
True
False
Question 3
Question
In a frame structure, the skeleton supports the weight of the other parts of the structure.
Answer
True
False
Question 4
Question
Mass structures are made by...
Answer
Hammering wood together
However, only it has to be large and heavy
However, but the materials have to be piled up
Question 5
Question
Planning is extremely important when building a structure. Which of the following things need to be examined in planning?
Answer
Safety requirements
Beauty
Funcion
Materials
Colour and Texture
Fasteners or joints
Question 6
Question
What are some of the things constructors need to think about while choosing a material for the structure?
Answer
Cost
How it feels
Enviromental Impact
Appearance
How much energy it uses
Question 7
Question
Joints can be...
Answer
Rigid
Soft
Mobile
Used by anyone
Question 8
Question
Mass is...
Answer
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
Question 9
Question
According to the lesson notes, FORCE can do all of the following EXCEPT for...
Answer
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
Question 10
Question
The Newton (N) unit is used to measure mass.
Answer
True
False
Question 11
Question
Which of these is NOT true?
Answer
Tension means STRETCHING
Compression means CRUSHING
Torsion means TWISTING
Sheer means TEARING
Bending means ROCKING
Question 12
Question
An internal force acts on the outside of a structure. An external force acts on the inside of a structure.
Answer
True
False
Question 13
Question
Live loads are things/people/weather etc that can act on the structure. Dead loads are the structure itself.
Answer
True
False
Question 14
Question
Friction is a force that speeds up motion.
Answer
True
False
Question 15
Question
If a structure is STABLE, what does that mean?
Answer
It is less likely to tip over
It is not possible for it do get destroyed
It is a place where animals live
Question 16
Question
What is the "Centre of Gravity"?
Answer
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
Question 17
Question
A gyroscope's axis is stabalized, so it never points in the same direction.
Answer
True
False
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