Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Sec 1 :D > Chapter 2 S1 Physical Properties Of Matter > Flashcards

Chapter 2 S1 Physical Properties Of Matter Flashcards

(REFER TO NOTES FOR MEASURING INSTRUMENTS & MENISCUS)

1
Q

What is matter?

A

Matter is anything that has mass and volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is mass?

A

Mass is the amount of matter something has

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The larger the mass?

A

The more matter an object has

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is volume?

A

Volume is the amount of space something occupies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

There are 7 properties

What are the properties of ceramic?

A
  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
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 5 main groups of materials?

A

Ceramic, Metal, Glass, Fibres and Plastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

There are 7 properties

What are the properties of glass?

A
  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
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

There are 5 properties

What are the properties of metal?

A
  1. Shiny
  2. Good conductor of electricity
  3. Good conductor of heat
  4. Malleable
  5. Ductile
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

There are 6 properties

What are the properties of plastic?

A
  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
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

There are 4 properties

What are the properties of fibres?

A
  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
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the description of physical properties?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Definition of strength

A

Ability to support a heavy load without breaking or tearing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Definition of hardness

A

Ability to scratch another material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Definition of flexibility

A

Ability to bend without breaking and return to its original shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Definition of heat (thermal conductivity)

A

Measure of how easily heat passes through it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Definition of electrical conductivity

A

Measure of how easily electricity passes through it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Definition of melting point

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Definition of boiling point

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Definition of density

A

Mass of substance per unit volume (mass over volume)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Definition of physical quantity

A

A quantity that can be measured

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the SI unit of mass?

A

kilogram (kg)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
A
16
Q

What is the unit of length?

A

metre (m)

17
Q

What is the SI unit of time?

A

second (s)

18
Q

What is the SI unit of volume?

A

cubic metre (m3)

19
Q

What is the SI unit of temperature?

A

kelvin (K)

20
Q

What is a prefix?

A

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

21
Q

What is the symbol and multiplier for the prefix “kilo”?

A

k, 1000

22
Q

What is the symbol and multiplier for the prefix “centi”

A

c, 0.01

23
Q

What is the symbol and multiplier for the prefix “milli”

A

m, 0.001

24
Q

What is length?

A

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

25
Q

what must we do when using a metre rule?

A

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

25
Q

what is a measuring tape used to measure?

A

longer lengths and lengths of curved surfaces

25
Q

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

A

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

25
Q

what is the digital vernier calipers used for?

A

measuring internal and external lengths of small objects very accurately

25
Q

what is the smallest measurement of digital vernier caliper?

A

0.1mm (0.01cm)

25
Q

what is mass?

A

mass is the amount of matter an object has

25
Q

what instrument is used to measure mass?

A

electronic balance

25
Q

what is volume?

A

volume is the amount of space a substance occupies?

25
Q

how much is 1m cube in centimetres?

A

1 000 000 cm cube

25
Q

what instrument is used to measure volume of a liquid

A

measuring cyclinder

25
Q

volume of liquids can be measured in?

A

litres / millilitres / cubic centimetres

26
Q

what is the curved shape of the liquid surface called?

A

meniscus

27
Q

what must we do when reading meniscus?

A

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

28
Q

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

A

2 D.P.

29
Q

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

A

measuring cyclinder

30
Q

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

A
  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
31
Q

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

A

displacement can & measuring cyclinder

32
Q

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

A

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.

33
Q

what is density?

A

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

34
Q

what is the formula for calculating density?

A

mass over volume

35
Q

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

A

2 to 3

36
Q

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

A

it sinks

37
Q

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

A

it floats

Sec 1 :D (22 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions