High strength in tension is a good property for a material used to make:
Rope
1 of 25
The property of lasting a long time before wearing out is know as:
durability.
2 of 25
Rubber is a good material for making wellington boots because it is:
waterproof
3 of 25
Data is more reliable if it can be
repeated.
4 of 25
To find the hardness of different types of rubber the depth a steel ball can be pushed into each rubber sample is measured. In this investigation the size of the steel ball must be:
constant
5 of 25
In a good experimental design one factor is varied and all of the others are:
controlled
6 of 25
Most of the molecules in crude oil are:
hydrocarbons.
7 of 25
Most of the fractions from crude oil are used as:
fuels
8 of 25
Joining small molecules to make long chains is called:
polymerisation.
9 of 25
Why is uPVC a better material for window frames than wood?
is more durable.
10 of 25
What is needed to break the forces between particles in a solid?
Energy
11 of 25
A solid has a high melting point if the forces between its particles are:
large.
12 of 25
Increasing the chain length of a polymer makes it:
less flexible.
13 of 25
To make a polymer softer and more flexible we can add:
plasticiser
14 of 25
Cross linking the chains makes a polymer:
harder.
15 of 25
Increasing the crystallinity of a polymer increases the:
melting point
16 of 25
The life cycle assessment for a product will be different if we:
use a different material.
17 of 25
A wooden window frame may have less environmental impact than a uPVC window frame because it...
is more sustainable
18 of 25
The life cycle assessment for a material will be different for each...
product
19 of 25
When using a life cycle assessment a scientific approach can be used to address:
some questions
20 of 25
In the context of a life cycle assessment, the benefits are:
for some but not others
21 of 25
Using the Earth's resources in a way that allows them to keep being used in the future is:
sustainable.
22 of 25
Scientific reseach and applications are controlled by:
Scientific research
23 of 25
In the context of a life cycle assessment not all of the things that should be done are:
feasible
24 of 25
In the context of a life cycle assessment different courses of action may be taken because of different
social situations.
25 of 25
Other cards in this set
Card 2
Front
The property of lasting a long time before wearing out is know as:
Back
durability.
Card 3
Front
Rubber is a good material for making wellington boots because it is:
Back
Card 4
Front
Data is more reliable if it can be
Back
Card 5
Front
To find the hardness of different types of rubber the depth a steel ball can be pushed into each rubber sample is measured. In this investigation the size of the steel ball must be:
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