Let's Solve Science n Biology with Thomas

27/05/2024

Where’s there smoke there’s Fire 🔥

Y’all have a productive week

29/09/2022

Good News to all our followers!!!
We have now extended our learnings
We now cater for the A-Levels that is Biology, Chemistry, Physics and Mathematics.

For our Secondary we continue with our usual learnings 😊

30/08/2021

Chemistry

1) When a beam of white rays is dispersed by a prism which colour will be refracted to a larger extent?

Answer: Violet.



2) The modern atomic mass unit is based on ____
Answer: Carbon-12.



3) What do you mean by photoelectric effect?

Answer: Emission of electrons by electromagnetic radiation striking on a metal surface.



4) A raincoat is made of what?

Answer: Polychloroethene.



5) What is the value of Planck’s constant in SI units?

Answer: 6.625 x 10’34 Is.



6) The total number of electrons present in 18 ml of water is ____

Answer: 6.02 × 1024.



7) What is the velocity of light in m/s?

Answer: 3 x 108 m/s.



8) Which element on adding to natural rubber makes it less sticky in hot weather and less hard in cold weather?

Answer: Sulfur.



9) The scientist who introduced the model of the atom similar to the solar system?

Answer: Ernest Rutherford.



10) 3 g of a salt of molecular weight 30 is dissolved in 250 g of water. The molality of the solution is ____

Answer: 0.4m.



11) What happens when an electron moves nearer to the nucleus of the atom?

Answer: Its energy decreases.



12) Which chemical causes Minamata disease?

Answer: Mercury.



13) What is molarity?

Answer: Number of moles of solute in one liter of the solution.



14) The weight of 1 × 1022 molecules of CuSO4 .5H2O is ____
Answer: 4.14 g.



15) What kind of thermometer is used to determine the depression of freezing point?

Answer: Beckmann thermometer.



16) The absence of cobalt in minute quantities in human body causes what?

Answer: Pernicious anemia.



17) What do you mean by a buffer solution?

Answer: Solution which can maintain constant PH.



18) 27 g of Al will react completely with how many grams of oxygen?
(a) 8 g (b) 16 g (c) 32 g (d) 24 g
Answer: D.



19) Which element has no neutrons in it?

Answer: Hydrogen.



20) Which element can easily form chains?

Answer: Carbon.



21) What is the fundamental particle present in P – rays

30/08/2021

Physics, Chemistry, Biology & Mathematics

Chemistry

Are two atoms of the same element identical?

Can water stay liquid below zero degrees Celsius?

Can you light diamond on fire?

How bad of an alcoholic do you have to be to have your brain affected?

How can glass be a liquid if it's so hard?

How do I know if something is an acid so I can avoid eating it?

How do plants get their nitrogen from the air?

How does dissolving a salt molecule in water make its atoms ionize?

How does plasma make a campfire flame orange?

How does tomato juice make skunk smell go away?

05/06/2021

Try your lucky

05/06/2021

Hebrews 6 v 19

Sure and Steadfast

Good morning to y'all 🙏

05/06/2021

Selling and Advertising Membership Cards online

04/06/2021

Physics

Work Energy and Power

Work is the product of force and the distance moved in the direction of force
Mathematically given as W=FD
Where F is the force and D is the distance

Energy is the ability to do work
There are two types of energy
i) Kinetic Energy
ii) Potential Energy

Kinetic Energy is the energy possessed by the body due to it's motion

KE=1/2MV^2

Potential Energy is the Energy by the position of an object
PE=MGH

Power is the rate at which work is done
P=w/t
Where w is the work done and t the time taken

Feel free to send us a question related to the above topic

25/12/2020

Always give God thee Glory
Even as we continue with our studies as well as our exams
All the best lads

18/09/2019

Osmosis is the movement of water molecules from the region of high concentration to the region of lower concentration via a selective permeable membrane-bound.

Define Diffusion.

27/06/2019