## Recent Posts in O Level Physics

### Systematic Error & Random Error

Systematic Errors Systematic errors are errors of measurements in which the measured quantities are displaced from the true value by fixed magnitude and in the same direction. Example of systematic…

### Worked Examples for Work

These worked examples will help to solidify your understanding towards the concept of work and work done. Worked Example 1: Pushing A Box A boy pushes a box across a…

### Worked Examples for Energy

These worked examples will help to solidify your understanding towards the concept of conservation of energy and energy conversion. Worked Example 1: Speeding Projectile A projectile of mass 0.02 kg…

### Case Study 2: Energy Conversion for A Bouncing Ball

Consider a ball with mass $m$ dropped from a height of $h_{\text{initial}}$ m from the ground. Stage 1: Initially, the ball will be at height $h$ m above the ground…

### Case Study 1: Energy Conversion for An Oscillating Ideal Pendulum

Consider an ideal pendulum (as shown in the diagram below). Note that ideal pendulum means that there is no energy lost to overcome air resistance and friction during oscillation. When…

## Recent Posts in A Level Physics

### Systematic Error & Random Error

Systematic Errors Systematic errors are errors of measurements in which the measured quantities are displaced from the true value by fixed magnitude and in the same direction. Example of systematic…

### Equations of Motion

Important Kinematics Equations! (Memorize them!) These equations are known as equations of motion. They are only valid if the acceleration is CONSTANT (UNIFORM acceleration). $$v = u + at \tag{1}$$…

### Parallax Error, Zero Error, Accuracy & Precision

Accuracy & Precision A measuring equipment can give precise but not accurate measurements, accurate but not precise measurements or neither precise nor accurate measurements. Accuracy is a measure of how…

### A.C. Generator (A Level)

An alternating current (A.C.) generator is an important application of electromagnetic induction. A.C. generator is an electromagnetic device which transforms mechanical energy into electrical energy. It consists of a rectangular…

### Velocity Selector

Recall from Motion of a moving charge in an uniform magnetic field that a moving charge travelling at a speed of v within an uniform magnetic field will experience a…

### Looking to the Future During Aerospace Industry’s Transition Period

There has never been a better time to be an aerospace engineer. What was once considered a career meant for the anti-social, super nerds of high schools across the globe…

### Contribute To Science With BOINC!

Have you ever wish that you are a scientist working hard at the cutting edge of research? Do you want to help humanity progress in the forefront of science? Now…

### Education? Do I Need It?

This post is aimed at clearing some of the misconceptions about the alleged benefits of rejecting a proper education.   From the article on dealing with exam stress, we have:…