2016 PSLE Discussions (Born in 2004)

[tan0117]

Today science paper have more life science or physical questions?

[xuniquenovicex]

tan0117:

Today science paper have more life science or physical questions?

More of life science

[ChiefKiasu]

reddiechan:

I think the balloon is possessed.

:rotflmao: Good one.

Does anyone even know what the question is? Did the question asked \"why the balloon move in different direction when air is released?\" or \"why the balloon move in opposite direction?\". If so, the question is obviously referring to Newton's 3rd Law, which I didn't know would be tested at the Primary school level. I'm not even sure how to use kinetic energy or gravitational energy to explain that strange movement.

[xuniquenovicex]

ChiefKiasu:

reddiechan:

I think the balloon is possessed.

:rotflmao: Good one.

Does anyone even know what the question is? Did the question asked \"why the balloon move in different direction when air is released?\" or \"why the balloon move in opposite direction?\". If so, the question is obviously referring to Newton's 3rd Law, which I didn't know would be tested at the Primary school level. I'm not even sure how to use kinetic energy or gravitational energy to explain that strange movement.

It is why did the balloon travel in different directions.That was what i remembered

[Concerndad]

reddiechan:

Concerndad:

[quote=\"snuggles2009\"]Balloon question: my child said kinetic energy makes the balloon move then gravitational pulls it down

Weight/spring question: my child said change to longer spring

Q1 Imho..
The balloon possessed Kinetic Energy to convert into Gravitional Potential Energy. Hence balloon continued to rise even after the balloon was deflated.

Q2. I think it should not be longer spring.

Change the spring into one that has lesser flexibility. So that it can receive a larger elastic spring force of up to 50kg weight limit.

I think the balloon is possessed.[/quote] :salute: :rotflmao:

[Yong HL]

reddiechan:

I think the balloon is possessed.

I told my girl got ghost. She gave me the :roll: look.

[ChiefKiasu]

Yong HL:

I told my girl got ghost. She gave me the :roll: look.

Children these days don't believe in ghosts anymore lor. Anyway, have you ever wondered why balloons would fly the other way when air is released, but humans don't do that when they fart? Strange right? Maybe should be in next year's PSLE Science.

[Mommilicious]

Tyre qn : DS ans is strong and flexible.

[Ender]

ChiefKiasu:

Yong HL:

I told my girl got ghost. She gave me the :roll: look.

Children these days don't believe in ghosts anymore lor. Anyway, have you ever wondered why balloons would fly the other way when air is released, but humans don't do that when they fart? Strange right? Maybe should be in next year's PSLE Science.

If there's no gravity , out in space. Your fart will definitely push you in the opposite direction without stopping. You be lost in space. Like what they show in the movie Gravity and The Martian. Little burst of air will propel the astronaut in one direction.

[sgchern]

ChiefKiasu:

Yong HL:

I told my girl got ghost. She gave me the :roll: look.

Children these days don't believe in ghosts anymore lor. Anyway, have you ever wondered why balloons would fly the other way when air is released, but humans don't do that when they fart? Strange right? Maybe should be in next year's PSLE Science.

If we did we won't dare to go to sleep at night, be scared of dark places and completely freak out and have nightmares after watching horror movies. Because of a bad childhood experience with ghost stories I'm scared of the dark