Physical Properties of Matter

Question 1

physical state

Answer 1

The condition of being solid,liquid and gas.

Question 2

colour

Answer 2

A substance can be red orange yellow green blue purple brown black white or colourless. If a substance has a mixed colour , diatribe it as being greenish-blue,reddish-brown etc.

Question 3

odour

Answer 3

A substance can be described as odourless, burnt ,flowery, putrid,spicy,sharp choking, nauseating and suffocating *always waft.

Question 4

taste

Answer 4

There are four tastes; sweet,like sugar;sour, like vinegar;salty,like table salt;bitter,like coffee.all flavours are either combinations of tastes and odours.

Question 5

clarity

Answer 5

(The transmission of light)substances are classified as being transparent(clear)translucent(cloudy)or opaque(not allowed light threw).

Question 6

lustre

Answer 6

(The ability of an object to reflect light)chrome trim on cars is said to have a high lustre because it is bright and shiny. A flat paint has low lustre.

Question 7

form

Answer 7

Substances with a regular shape, such as cube-shaped grains of salt, are said to be crystalline.Substances with un irregular form such as starch are said to be amorphous.

Question 8

texture

Answer 8

The “feel” of a substances to the fingers; fine,coarse smooth, gritty,silky, fluffy,waxy,etc.

Question 9

hardness

Answer 9

The hardness of substances is rated on a scale from 1 to 10.Resistance to being scratched is used to determine hardness.Talc (talcum powder) is rated at 1 on the , a finger nail at 2.5 , window glass at 5 and a diamond at 10.

Question 10

brittleness

Answer 10

The ability of an object to break apart or shatter easily. glass, china and chalk are brittle. Substances that bend with out breaking are said to be flexible.

Question 11

malleability

Answer 11

The ability of a substance to be hammered into a sheet. Gold and aluminium can be made into very thin sheets or foils, they are called malleable substances.

Question 12

ductility

Answer 12

The ability of a substance to be stretched out into a wire-like shape because copper, gold, and silver can be drawn out into wires they are called ductile substances.

Question 13

viscosity

Answer 13

The resistance of a liquid to flowing. Liquids may be thin, thick, runny,syrupy etc the thicker the liquid the viscous it is, tar is viscous water is not.