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Polymers and Composites Review Flashcards | StudBud
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Polymers and Composites Review
Polymers and Composites Review
19 terms
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#8thgrade #chemistry #polymers #composites #elements #radioactive
Flashcards
19 cards
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1
The smaller molecules from which polymers are built
Alloys
Monomers
Atoms
Composites
2
The length of time needed for half of the atoms of a sample to decay
Nuclear Reaction
Radioactive Dating
Radioactive Decay
Half-Life
3
A mixture made of two or more elements that has the properties of a metal
Ceramic
Alloy
Polymer
Composite
4
A threadlike piece of glass that can be used for transmitting light
Optical Fiber
Alloy
Ceramics
Polymer
5
The atomic nuclei of unstable isotopes release fast-moving particles and energy
Radioactive Dating
Radioactive Decay
Nuclear Reaction
Radioactivity
6
Hard, crystalline solids made by heating clay and other materials at high temperatures
Plastic
Metals
Ceramics
Glass
7
True or false -synthetic polymers are used in place of natural materials that are too expensive
False
True
8
Which type of radioactive decay loses a neutron and gains a proton?
Beta
Alpha
Gamma
9
Which type of radioactive decay is the most dangerous to humans?
Alpha
Beta
Gamma
10
True or false - composites are made to work better or stronger than either one alone
False
True
11
Which type of radioactive decay consists of 2 protons and 2 neutrons?
Beta
Alpha
Gamma
12
A large complex molecule built from smaller molecules together in a repeating pattern
Composite
Polymer
Monomer
Alloy
13
True or false - ceramics can conduct electricity
True
False
14
Estimating the age of the fossil and its surrounding rock
Radioactive Decay
Half-Life
Radioactivity
Radioactive Dating
15
This is brittle, shatters when struck, clear, and can be made into many shapes
Glass
Ceramics
Plastics
Metals
16
The spontaneous emission of radiation by an unstable atomic nucleus
Nuclear Reaction
Radioactive Dating
Radioactivity
Radioactive Decay
17
Reactions involving the particles in the nucleus of an atom
Radioactive Decay
Radioactivity
Nuclear Reaction
Half-life
18
Combines two or more substances in a new material with different properties
Composites
Polymers
Alloys
Monomers
19
True or false - Proteins made by your body are synthetic polymers
False
True
