Q&A - PSLE Science

[charsen]

Zhu99:

Winx5015:

http://i49.tinypic.com/293u6hg.jpg\">


How to answer (a) ? :imdrowning:

Thanks:)

a i. The place the experiments is conducted.

a ii. The distance of the string from the each desk.


b. The weights when the bridge just collapsed. The greatest reading (weight) is the one with the strongest beam.

Hi
The place differs the size of the beam.But the mass remains the same when the beam expands or contracts.Another alternative is the type of string must be the same.
Cheers

[Rhhn]

Please remember that it is not poor conductor of electricity but is electrical insulator. Only poor conductor of heat no electricity

[Robertpattinsonidle]

Rhhn:

Please remember that it is not poor conductor of electricity but is electrical insulator. Only poor conductor of heat no electricity

So many confusions. Charsen said something else. My teacher said something else. Google says something else! AGHH!!

[charsen]

Robertpattinsonidle:

Rhhn:

Please remember that it is not poor conductor of electricity but is electrical insulator. Only poor conductor of heat no electricity

So many confusions. Charsen said something else. My teacher said something else. Google says something else! AGHH!!

Hi
Sorry for the inconveince caused.I was wrong.
Note:
Non-conductor/insulator of electricity.
Poor conductor of heat.
Cheers

[Robertpattinsonidle]

charsen:

Robertpattinsonidle:

[quote=\"Rhhn\"]Please remember that it is not poor conductor of electricity but is electrical insulator. Only poor conductor of heat no electricity

So many confusions. Charsen said something else. My teacher said something else. Google says something else! AGHH!!

Hi
Sorry for the inconveince caused.I was wrong.
Note:
Non-conductor/insulator of electricity.
Poor conductor of heat.
Cheers[/quote]No problem. As long as everyone learnt something tricky et meaningful today.

[ms_lim]

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Ans key is 1 can help to explain? I thought ans is 4?

[ms_lim]

These are the options for previous post


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[notfreemom]

ms_lim:

These are the options for previous post


http://i48.tinypic.com/244qses.jpg\">

My answer also 4. If it is GPE, then answer is diff.

[charsen]

ms_lim:

These are the options for previous post


http://i48.tinypic.com/244qses.jpg\">

Hi
The answer is definetly option 4 as gravitational force is constant on the ball even if the ball is in the air.

Cheeers

[ms_lim]

charsen:

ms_lim:

These are the options for previous post


http://i48.tinypic.com/244qses.jpg\">

Hi
The answer is definetly option 4 as gravitational force is constant on the ball even if the ball is in the air.

Cheeers

Thanks for the confirmation, charsen.