Tomhais agus Aonaid Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Cad é chórás SI?

A

Córas tomhais a úsáidtear ar fud an domhain. Is é an SI an t-aonad caighdeánach tomhais le haghaidh rudaí éagsúla

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

An aonad SI le haghaidh:
(i) Fad (length)
(ii) Mais
(iii) Am
(iv) Teocht

A

(i) Meadar
(ii) Kileagram
(iii) Secoind
(iv) Kelvin

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

Cad é fad + aonad SI agus 2 aonad eile?

A

Fad idir dhá phointe a thomhas, feadh líne dhíreach/chuartha. SI - Meadar (m) Aonad eile - centimetres (cm), Kileameadar (km

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

3 gaireas chun fad a thomhas + cén saghas fad a thomhastar?

A

Bata méadar - líne dhíreach Opisometer - gearr, línte cuartha
Roth Trundle - fada, achar cuartha

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

Cad é mais le aonad SI + aonad eile?

A

Tomhas ar cé mhéad ábhar ina bhfuil SI - kileagram (kg) Aonad eile - gram (g)

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

SI aonad d’am?

A

Secoind (s)

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

Cad é teocht + aonad SI le aonad eile?

A

Tomhas ar cé chomh te a bhfuil rud. Aonad SI - Kelvin (K) Aonad eile = Celsius (C)

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

Cén fáth gur úsáideann eolaíochtaí an scála Kelvin?

A

Níl aon uimhir diúltach ar an scála

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

Cad a bhfuil 0 chéim Kelvin i Celsius?

A

-273.15 chéim Celsius

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

Cad é achar agus 3 aonad comónta?

A

Méid dhromchla ruda + km2, m2, cm2

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

Cad é toirt agus 3 aonad comónta?

A

Tomhas ar an méid spáis a thógann rud éigin suas + m3, cm3, mm3

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

Conas a fhaigeann tú toirt bosca gnáth-cruth + leacht?

A

Fad x leithead x airde
Cuir an leacht socoir grádaithe agus léigh an toirt

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

Conas a fhaigeann tú toirt de réada neamhrialta múnlaithe (irregulary shaped objects)?

A

Bain úsáid as sorcóir grádaithe (féach cé mhéad a ardaíonn uisce) nó is féidir le sreabhadh thar (féach cé mhéad uisce a bhrúitear amach)

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

Conas a fhaigeann eolaíochtaí thomhas cruinn?

A

Déanann siad iliomad léamha (multiple readings) agus úsáideann siad an gaireas iomchuí (appropriate)

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

Foirmle i gcomhair méan d’thomhas?

A

Suim na dtomhas/líon na dtomhas

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