Atomic number and mass number

Should you want to know, the atomic number of an atom is the number of protons it contains. The atoms of different elements all have different numbers of protons. Meanwhile, the mass number of an atom consists of the total … Read More

Things you should really learn about the elements

Just so you know, there are approximately 100 elements out there (that we know of at least). All 100 elements are shown in the periodic table, however only 92 of these elements occur naturally on Earth. This is because the … Read More

Atoms and electrons

One thing you won’t be able to escape in physics is learning the makeup of an atom. I’m sorry, but it’s just something you have to know. Now we’ve got that sorted, let’s get down to the basics. As you … Read More

All you need to know about stars

As you probably know already, a star is a luminous sphere of plasma held together by its own gravity. The Sun is a pretty spectacular example of a star – and it’s also the closest one to our planet, Earth. … Read More

Important definitions, equations and theories to remember

As you’re no doubt aware, the universe is an incredibly complicated entity. This means there’s a lot for you to learn. But don’t fret; we’ve got everything you need to know right here. To help you out, we’ve arranged each … Read More

Ernest Rutherford and his famous experiment

Ernest Rutherford (1871-1937) was a New Zealand physicist who’s often referred to as the father of nuclear physics. So basically, he’s a pretty big deal. Over the course of his career, Rutherford aided the world’s understanding of nuclear physics in … Read More

Important things to remember about weight and mass

If you take anything away from physics, let it be this: weight is not the same thing as mass. Confused? In short, mass is a measure of how much stuff is in an object, while weight is the gravitational force … Read More