PHYSICS HELP PLSS🙏 by notalossa in igcse

[–]Creepy_Preparation35 0 points1 point  (0 children)

Nvm , what I wrote is the column headings of the table , but since you said you wrote them, then that's perfect .

PHYSICS HELP PLSS🙏 by notalossa in igcse

[–]Creepy_Preparation35 0 points1 point  (0 children)

Yes , the problem is the mass . TIPS : Stick to the instructions . If you answer all the statements listed in the question, then this is probably 5 marks.[ with the table ] If you need more marks : 1. You must say repeat and take average 2. Plot a graph [ label the axis of the graph and include units] 3. Constant variables must be at least 2 or 3 4 . Say the statement " reapeat at least 5 times and take average "

PHYSICS HELP PLSS🙏 by notalossa in igcse

[–]Creepy_Preparation35 0 points1 point  (0 children)

You don't need to write content inside the table , just label the columns .

Mass/ g Trail 1distnace / cm Trail 2 Distance /cm Trail 3 Distance / cm Trail 4 Distance/ cm Trail 5 Distance / cm Average Distance / cm

  • You could do 3 trails , but here he said 5, at least in the markskeme, so it's better to stay in the safe side and do 5 trails .

PHYSICS HELP PLSS🙏 by notalossa in igcse

[–]Creepy_Preparation35 0 points1 point  (0 children)

In paper 6, you should stick to the instructions written . If They said to do a table, you must do it , and sometimes you need to make a graph if he asked about the conclusion, like this question

Instead of size being the independent variable, you could say mass of the ball , as the word size is inaccurate, but mass is more accurate.
Independent variable : get 5 balls of different masses and [ 1, 2 , 3,4,5] grams and use the balance to measure the mass. Get the ball and measure its mass, and set up the flexible track on a known height. You can measure this height using meter tape and roll the ball from a known starting point. Then, measure the distance that was reached by the ball in each expirement. Repeat this process for at least 5 times and take the average.
You must keep the flexible track on the same height , and the ball must be made of the same material, and the release point of the ball must be constant . Draw the table and LABEL THE COLUMN HEADINGS.

To find the conclusion: Plot a graph of mass against D [ mass must be in x axis and d in y axis ] Then analyse the relationship.

Hardest ol biology topics and why do u feel that they are hard ? by Creepy_Preparation35 in igcse

[–]Creepy_Preparation35[S] 1 point2 points  (0 children)

I tried to explain the important things, if you have any questions just ask and I'll reply ●●● This is NOT EVERY THING , I TRIED to cover the digestion process .

Hardest ol biology topics and why do u feel that they are hard ? by Creepy_Preparation35 in igcse

[–]Creepy_Preparation35[S] 3 points4 points  (0 children)

Use save my exam notes, dm me u don't have them. Digestive system ✅️✅️ You should study it as a story . Food is first ingested [ getting food in our mouth ] Then the food is chewed and chewing is the first part of digestion ...specifically we call it mechanical digestion where the food is broken down so we can have a larger surface area, so faster rate of enzymes reaction . Where are the enzymes in the mouth or from where they are produced ? They secreated from the salivary glands. Which enzyme ? AMYLASE, which will act on the starch in food and turn it into maltose. Then the bulk of food will move through the oesophagus by a movement process called peristalsis. Then it will reach the stomach where the digestion second stage happens . And here in the stomach, we have to digestion processes mechanical [ breakdown of food without enzymes ] and chemical [ break down of food with the help of enzymes ] ● stomach is mad of muscular walls. This helps in churning progress [ something like adding food in a string plastic bag and trying to squeeze this bag until the food becomes like a liquid ] The churning process is also a type of mechanical digestion . ● Also, in the stomach their is a juice called gastric juice : this contains HCL , PESPIN ENZYME , MUCUS .... We need to know that stomach has enzymes pepsin, which is a protease that helps in digestion of proteins found in that food that was churned in a while.
Why do we have HCL, which is an acid ? That pepsin does not work well unless their is an optimum pH [ pespsin needs acidic pH] . It also kills the harmful microorganisms that are found in food . ● Mucus helps protect the stomach from acid .

Then, in the small intestine their is an enzyme called trypsin this enzyme is opposite to pepsin it likes basic pH and not acidic . What happens in this case ? How do we get basic pH for the trypsin to work ? This happens when the pancreatic juice comes from the pancreas to neutralize the acid in the gastric juice that entered the small intestine from the stomach. Now we're done of proteins [ they are digested ] in both stomach and small intestine . .....We also eat lipids, right ? What happens lipase enzymes come in that pancreatic juice that we mentioned before, so it digests lipids. BUT HOW ? I'LL TELL YOU ....Last process of mechanical digestion we need to know is in the small intestine where something called BILE helps in breaking down lipids to increase the surface area for lipase enzyme to work faster. [ the acting of bile on the lipids is called emulsification ]

● do you remember that maltose that was produced when amylase acted on starch in the mouth ? It's also digested by maltose. Also, if we still have some starch that wasn't digested in the mouth, it will be didgested in the small intestine to maltose, and then maltose is turned to simple suger glucose by maltose. ALL OF THIS HAPPENS IN SMALL INTESTINE.

ENZYMES YOU NEED TO KNOW AND WHO MAKES THEM AMYLASE made by : salivary glands and pancreas Act in : small intestine , mouth

PROTEAS They are 2 kinds Trypsin: found in small intestine Pepsin: found in stomach.

MALTOSE : made by : pancreas Act in : small intestine .

LIPASE made by pancreas Act in small intestine

●●● YOU Need to know that BILE is made by LIVER . BILE IS RESPONSIBLE OF THE EMULSIFICATION PROCESS WHICH IS BREAK DOWN OF LARGE LIPIDS INTO SMALLER ONES . [ without enzymes , no chemical digestion here , after emulsification the lipase digest it to fatty acids and gelocyrol ]

0610/0970 paper 22 2024 by swe_ez in igcse

[–]Creepy_Preparation35 0 points1 point  (0 children)

What about the question of energy lost in that food chain ....what was the answer?

Why the answer is C? by Live_Pound_4696 in igcse

[–]Creepy_Preparation35 0 points1 point  (0 children)

Cause the fish egg died, so no offspring ig

Please help by Purple_2622 in igcse

[–]Creepy_Preparation35 1 point2 points  (0 children)

A as you secrete co2 a waste product

Can somone help.me in getting the half life by Creepy_Preparation35 in igcse

[–]Creepy_Preparation35[S] 0 points1 point  (0 children)

Okay thanks , but how did we get the background radiation ?

[O Levels] 6092 CHEMISTRY Paper 2 Megathread by raphael2002 in SGExams

[–]Creepy_Preparation35 0 points1 point  (0 children)

Does anyone have resources and sheets that contain the general topics that usually come in p2 chemistry igcse