Chapter 2 S1 Physical Properties Of Matter

Question 1

What is matter?

Answer 1

Matter is anything that has mass and volume

Question 2

What is mass?

Answer 2

Mass is the amount of matter something has

Question 3

The larger the mass?

Answer 3

The more matter an object has

Question 3

What is volume?

Answer 3

Volume is the amount of space something occupies

Question 3

There are 7 properties

What are the properties of ceramic?

Answer 3

1. Made of clay
2. Poor conductor of electricity
3. Hard
4. Can be moulded into shapes
5. Does not corrode
6. Has a high melting point
7. Brittle

Question 3

What are the 5 main groups of materials?

Answer 3

Ceramic, Metal, Glass, Fibres and Plastic

Question 4

There are 7 properties

What are the properties of glass?

Answer 4

1. Transparent
2. Poor conductor of electricity
3. Poor conductor of heat
4. Can be moulded into shapes
5. Has a high melting point
6. Brittle
7. Hard

Question 4

There are 5 properties

What are the properties of metal?

Answer 4

1. Shiny
2. Good conductor of electricity
3. Good conductor of heat
4. Malleable
5. Ductile

Question 5

There are 6 properties

What are the properties of plastic?

Answer 5

1. Low density
2. Does not corrode
3. Can be moulded into shapes
4. Has a low melting point
5. Poor conductor of heat
6. Poor conductor of electricity

Question 6

There are 4 properties

What are the properties of fibres?

Answer 6

1. Can be spun into threads and woven into fabrics
2. Able to absorb dyes
3. Poor conductors of electricity
4. Poor conductors of heat

Question 7

What is the description of physical properties?

Answer 7

Physical properties of a material are qualities that can be observed and measured without changing its composition

Question 8

Definition of strength

Answer 8

Ability to support a heavy load without breaking or tearing

Question 9

Definition of hardness

Answer 9

Ability to scratch another material

Question 10

Definition of flexibility

Answer 10

Ability to bend without breaking and return to its original shape

Question 11

Definition of heat (thermal conductivity)

Answer 11

Measure of how easily heat passes through it

Question 12

Definition of electrical conductivity

Answer 12

Measure of how easily electricity passes through it

Question 12

Definition of melting point

Answer 12

Temperature at which the material changes state from a solid to liquid

Question 13

Definition of boiling point

Answer 13

Temperature at which the material changes state from a liquid to gas

Question 14

Definition of density

Answer 14

Mass of substance per unit volume (mass over volume)

Question 15

Definition of physical quantity

Answer 15

A quantity that can be measured

Question 15

What is the SI unit of mass?

Answer 15

kilogram (kg)

Question 16

What is the unit of length?

Answer 16

metre (m)

Question 17

What is the SI unit of time?

Answer 17

second (s)

Question 18

What is the SI unit of volume?

Answer 18

cubic metre (m3)

Question 19

What is the SI unit of temperature?

Answer 19

kelvin (K)

Question 20

What is a prefix?

Answer 20

A prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or a fraction of the unit

Question 21

What is the symbol and multiplier for the prefix "kilo"?

Answer 21

k, 1000

Question 22

What is the symbol and multiplier for the prefix "centi"

Answer 22

c, 0.01

Question 23

What is the symbol and multiplier for the prefix "milli"

Answer 23

m, 0.001

Question 24

What is length?

Answer 24

Length is a physical quantity needed for us to calculate area and volume

Question 25

what must we do when using a metre rule?

Answer 25

place our eyes vertically above / perpendicular to the marking on the metre rule to obtain a correct reading. wrong eye position leads to a parallax error, giving rise to an inaccurate reading

Question 25

what is a measuring tape used to measure?

Answer 25

longer lengths and lengths of curved surfaces

Question 25

what is the smallest division of the measuring tape and what is it accurate to?

Answer 25

smallest division: 1mm accurate to: 1 mm (0.01cm)

Question 25

what is the digital vernier calipers used for?

Answer 25

measuring internal and external lengths of small objects very accurately

Question 25

what is the smallest measurement of digital vernier caliper?

Answer 25

0.1mm (0.01cm)

Question 25

what is mass?

Answer 25

mass is the amount of matter an object has

Question 25

what instrument is used to measure mass?

Answer 25

electronic balance

Question 25

what is volume?

Answer 25

volume is the amount of space a substance occupies?

Question 25

how much is 1m cube in centimetres?

Answer 25

1 000 000 cm cube

Question 25

what instrument is used to measure volume of a liquid

Answer 25

measuring cyclinder

Question 25

volume of liquids can be measured in?

Answer 25

litres / millilitres / cubic centimetres

Question 26

what is the curved shape of the liquid surface called?

Answer 26

meniscus

Question 27

what must we do when reading meniscus?

Answer 27

our eyes must be at the same level as the bottom / top of the meniscus (depending on the liquid in the measurong cyclinder) to avoid parallax errors

Question 28

when writing down measurement of volume of liquid when using meniscus, how many decimal points must it be up to?

Answer 28

2 D.P.

Question 29

what instrument is used to measure the volume of small irregular solids?

Answer 29

measuring cyclinder

Question 30

what are the steps to carry out when measuring the volume of a small irregular solid?

Answer 30

1. record the initial height of water 2. lower solid into measuring cyclinder 3. record final height of water volume of water displaced = volume of solid

Question 31

what instruments are used to measure the volume of a large irregular solid?

Answer 31

displacement can & measuring cyclinder

Question 32

how do we measure the volume of a large irregular solid?

Answer 32

when an object is lowerred into the can, the water it displaces flows out of the can and into a measuring cyclinder. the volume of water obtained in the measuring cyclinder is the volume of the object.

Question 33

what is density?

Answer 33

density is the quantity of matter packed into a unit volume?

Question 34

what is the formula for calculating density?

Answer 34

mass over volume

Question 35

how many significant figures (with units) must the calculated result of density be to?

Answer 35

2 to 3

Question 36

what happens to the object when it is placed in a fluid of lower density?

Answer 36

it sinks

Question 37

what happens to the object when it is placed in a fluid of higher density?

Answer 37

it floats