Q&A - P3 Science
-
Nebbermind:
Actually the prev floppy ezlink was magnetic but not the current generation of ezlink card which uses a smart chip system.[/quote]
one of the uses of a magnet is to store information, so i would think that EZ-link card contain magnet.jedamum:
[quote=\"Puzz...zzle\"]HI Need Help !
1. Which of the following device does not contain a magnet?
1. Ez-link card
2. Compas
3. Refrigerator
4. Battery
Not sure answer is 1 or 4??
Interesting...
We just follow the assessment books for answers!!??
Not sure whether they mention anything about this in the TEXTBOOK. Honestly I don't use/even flip thro' the textbook. -
Nebbermind:
my dd told me 1 student in her class ask a question like this too.. (was it your idea, nebbermind)For magnetic qn, i remember having to decide if a telephone has magnet. Think the old styled phone had magnet in their ringer/bell n also the spkr n mic.
But I think modern phone is electronic n even the spkr n mic is piezo type system.
So how do we know what kind of phone they talking abt?
he ask the teacher is it true that some phones have no magnets and some cooking pots are fully made of metal and yet the handles will not feel too hot while cooking. the teacher said, \"in pri sci, we learn the basic fundamentals of the natural materials. however, science is always advancing itself and we have to keep up with the technology, except that when these new technology goes into the syllabus, it confuses the children....\" i rmb this very well as i find it very well said... -
verykiasumummy:
I was THAT student!!! :rotflmao:
my dd told me 1 student in her class ask a question like this too.. (was it your idea, nebbermind)
he ask the teacher is it true that some phones have no magnets and some cooking pots are fully made of metal and yet the handles will not feel too hot while cooking. the teacher said, \"in pri sci, we learn the basic fundamentals of the natural materials. however, science is always advancing itself and we have to keep up with the technology, except that when these new technology goes into the syllabus, it confuses the children....\" i rmb this very well as i find it very well said... -
Nebbermind:
cannot be ur era la... u got split personality??
I was THAT student!!! :rotflmao:verykiasumummy:
my dd told me 1 student in her class ask a question like this too.. (was it your idea, nebbermind)
he ask the teacher is it true that some phones have no magnets and some cooking pots are fully made of metal and yet the handles will not feel too hot while cooking. the teacher said, \"in pri sci, we learn the basic fundamentals of the natural materials. however, science is always advancing itself and we have to keep up with the technology, except that when these new technology goes into the syllabus, it confuses the children....\" i rmb this very well as i find it very well said... -
plse help!
1) only the food carrying tubes was removed from the plant. the plant was still alive after a few days. Which of the following reasons best explains why the plant was able to remain alive?
a) the root was able to absorb food from the soil
b) the root was still able to absorb mineral salts from the soil
c) the root was able to absorb water for the leaf to make food
d) the leaf was able to to make food and transport it to the root. -
another question which i need help!tks
The below shows how some objects have been classified based on the property of the materials they are made of. X & Y represent the head of the table.
X Y
paper clip Styrofoam cup
iron nail gold necklace
object A object B
what could object A & object B be?
Object A Object B
(1) gold pendant rubber ball
(2) aluminium foil cotton wool
(3) iron safety pin silver necklace
(4) aluminium foil copper pot -
another question which i need help!tks
The below shows how some objects have been classified based on the property of the materials they are made of. X & Y represent the head of the table.
X - paper clip, iron nail & object A
Y - styrofoam cup, gold necklace & object B
what could object A & object B be?
Object A
(1) gold pendant
(2) aluminium foil
(3) iron safety pin
(4) aluminium foil
object B
(1) rubber ball
(2) cotton wool
(3) silver necklace
(4) copper pot -
jwxh:
my answer is B.plse help!
1) only the food carrying tubes was removed from the plant. the plant was still alive after a few days. Which of the following reasons best explains why the plant was able to remain alive?
a) the root was able to absorb food from the soil
b) the root was still able to absorb mineral salts from the soil
c) the root was able to absorb water for the leaf to make food
d) the leaf was able to to make food and transport it to the root.
Roots only absorb mineral salt and water from the soil. hence A is out. C and D cannot happen as the food carrying tubes was removed. -
jwxh:
another question which i need help!tks
The below shows how some objects have been classified based on the property of the materials they are made of. X & Y represent the head of the table.
X - paper clip, iron nail & object A
Y - styrofoam cup, gold necklace & object B
what could object A & object B be?
Object A
(1) gold pendant
(2) aluminium foil
(3) iron safety pin
(4) aluminium foil
object B
(1) rubber ball
(2) cotton wool
(3) silver necklace
(4) copper pot
X - paper clip, iron nail & object A properties both metal, both can be conductors, both can be temp magnet
Y - styrofoam cup, gold necklace & object Bproperties of the elments in the group: non-metal & metal, Insulator and conductors, both cannot be a temp magnet
My answer is 3 -
are silver and gold non-mental?
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better š
Register Login