Arbeid, Energie en Drywing Flashcards

1
Q

Definieer:

Arbeid

A

“Die oordrag van energie”

Die krag vermenigvuldig met die verplasing parallel aan die krag.

Simbool: W

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

Definieer:

Nuttige arbeid

A

Die arbeid verrig deur die netto krag om die voorwerp te versnel

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

Definieer:

Vermorste arbeid

A

Die arbeid verrig teen wrywing

Dit kan daarom dus nie gebruik word om ‘n voorwerp te versnel nie.

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

Gee die formule vir:

Nuttige arbeid

A

Wnuttig = Wtoegepas - Wvermors

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

Meganiese energie

A

Die som van die potensiële- en kinetiese energie in ‘n sisteem.

Ep + Ek

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

Gee die:

Wet vir die Behoud van Meganiese Energie

A

Die totale meganiese energie van ‘n geïsoleerde sisteem bly behoue.

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

Energie

A

Die vermoë om arbeid te verrig

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

Gee die:

Arbeid-energiestelling

A

Die netto arbeid verrig is gelyk aan die verandering in kinetiese energie

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

Definieer:

Gravitasie-*potensiële* energie

A

Die energie van ‘n voorwerp as gevolg van sy posisie bokant die oppervlak van die aarde

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

Definieer:

Drywing

A

Die tempo waarteen arbeid verrig word

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

Definieer ‘n

Elastiese botsing

A

Tipe botsing waarin *kinetiese* energie *behoue* bly

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

Waarom verrig vertikale kragte GEEN ARBEID op ‘n horisontaal-bewegende voorwerp nie

A

Vertikale kragte is loodreg op die rigting van die verplasing

W = F. ∆x . cos*90 * = 0

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

Gee as ‘n formule:

Die beginsel van behoud van meganiese energie

A

Ki + Ui ** = ** Kf + Uf

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

Gee as ‘n formule:

Arbeid-energiestelling

A

Wnet = ** ∆K**

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