Things are roughened up and friction is now added to the approximate simple pendulum
Look at the units in the expression for the energy levels of the electrons in a hydrogen atom according to the Bohr model.
Explore the Lorentz force law for charges moving in different ways.
Read all about electromagnetism in our interactive article.
Can you work out the natural time scale for the universe?
Problems which make you think about the kinetic ideas underlying the ideal gas laws.
Explore the power of aeroplanes, spaceships and horses.
Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms
A think about the physics of a motorbike riding upside down
Find out how to model a battery mathematically
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.
Where will the spaceman go when he falls through these strange planetary systems?
Derive an equation which describes satellite dynamics.
See how the motion of the simple pendulum is not-so-simple after all.
How high will a ball taking a million seconds to fall travel?
How fast would you have to throw a ball upwards so that it would never land?
Find out why water is one of the most amazing compounds in the universe and why it is essential for life. - UNDER DEVELOPMENT
A look at different crystal lattice structures, and how they relate to structural properties
Some explanations of basic terms and some phenomena discovered by ancient astronomers
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?
Ever wondered what it would be like to vaporise a diamond? Find out inside...
Can you match up the entries from this table of units?
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
A look at the fluid mechanics questions that are raised by the Stonehenge 'bluestones'.
An introduction to a useful tool to check the validity of an equation.
Explore the rates of growth of the sorts of simple polynomials often used in mathematical modelling.
Explore the energy of this incredibly energetic particle which struck Earth on October 15th 1991
An article demonstrating mathematically how various physical modelling assumptions affect the solution to the seemingly simple problem of the projectile.
What is an AC voltage? How much power does an AC power source supply?
A look at a fluid mechanics technique called the Steady Flow Momentum Equation.
When a mixture of gases burn, will the volume change?
This is the technology section of stemNRICH - Core.
Investigate why the Lennard-Jones potential gives a good approximate explanation for the behaviour of atoms at close ranges
Have you got the Mach knack? Discover the mathematics behind exceeding the sound barrier.
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Follow in the steps of Newton and find the path that the earth follows around the sun.
A ball whooshes down a slide and hits another ball which flies off the slide horizontally as a projectile. How far does it go?
Work in groups to try to create the best approximations to these physical quantities.
A simplified account of special relativity and the twins paradox.
Get some practice using big and small numbers in chemistry.
Which units would you choose best to fit these situations?
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?
Which line graph, equations and physical processes go together?
How does the half-life of a drug affect the build up of medication in the body over time?
Can you arrange a set of charged particles so that none of them start to move when released from rest?
Work out the numerical values for these physical quantities.
Explore how can changing the axes for a plot of an equation can lead to different shaped graphs emerging
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
Look at the calculus behind the simple act of a car going over a step.