Find out why water is one of the most amazing compounds in the universe and why it is essential for life. - UNDER DEVELOPMENT
When a mixture of gases burn, will the volume change?
Investigate why the Lennard-Jones potential gives a good approximate explanation for the behaviour of atoms at close ranges
Investigate some of the issues raised by Geiger and Marsden's famous scattering experiment in which they fired alpha particles at a sheet of gold.
How does the half-life of a drug affect the build up of medication in the body over time?
An introduction to a useful tool to check the validity of an equation.
A simplified account of special relativity and the twins paradox.
A ball whooshes down a slide and hits another ball which flies off the slide horizontally as a projectile. How far does it go?
Gravity on the Moon is about 1/6th that on the Earth. A pole-vaulter 2 metres tall can clear a 5 metres pole on the Earth. How high a pole could he clear on the Moon?
Find the equation from which to calculate the resistance of an infinite network of resistances.
Follow in the steps of Newton and find the path that the earth follows around the sun.
How fast would you have to throw a ball upwards so that it would never land?
Can you work out the natural time scale for the universe?
This is the technology section of stemNRICH - Core.
Get some practice using big and small numbers in chemistry.
How high will a ball taking a million seconds to fall travel?
See how the motion of the simple pendulum is not-so-simple after all.
Work in groups to try to create the best approximations to these physical quantities.
Problems which make you think about the kinetic ideas underlying the ideal gas laws.
Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?
Investigate the effects of the half-lifes of the isotopes of cobalt on the mass of a mystery lump of the element.
Explore the Lorentz force law for charges moving in different ways.
Look at the units in the expression for the energy levels of the electrons in a hydrogen atom according to the Bohr model.
A look at a fluid mechanics technique called the Steady Flow Momentum Equation.
What is an AC voltage? How much power does an AC power source supply?
Have you got the Mach knack? Discover the mathematics behind exceeding the sound barrier.
A look at the fluid mechanics questions that are raised by the Stonehenge 'bluestones'.
Read all about electromagnetism in our interactive article.
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Where will the spaceman go when he falls through these strange planetary systems?
Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms
When you change the units, do the numbers get bigger or smaller?
Explore how can changing the axes for a plot of an equation can lead to different shaped graphs emerging
Which units would you choose best to fit these situations?
Can you match up the entries from this table of units?
Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?
Show that even a very powerful spaceship would eventually run out of overtaking power
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Which line graph, equations and physical processes go together?
Explore the rates of growth of the sorts of simple polynomials often used in mathematical modelling.
Explore the power of aeroplanes, spaceships and horses.
Things are roughened up and friction is now added to the approximate simple pendulum
Explore the energy of this incredibly energetic particle which struck Earth on October 15th 1991
Can you arrange a set of charged particles so that none of them start to move when released from rest?
An article demonstrating mathematically how various physical modelling assumptions affect the solution to the seemingly simple problem of the projectile.
Work out the numerical values for these physical quantities.
Ever wondered what it would be like to vaporise a diamond? Find out inside...
engNRICH is the area of the stemNRICH Advanced site devoted to the mathematics underlying the study of engineering
Some explanations of basic terms and some phenomena discovered by ancient astronomers
Derive an equation which describes satellite dynamics.