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Classwork Series and Exercises {Physics – SS3}: Radioactive Decay

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Physics SS 3 Week 2 Topic: Radioactive Decay Introduction Radioactive decay is the spontaneous radioactive disintegration of an atomic nucleus, resulting in the release of energy. Some atoms are stable. Others are unstable and ‘decay’, emitting radiation to achieve a stable state. The emissions from an unstable atom’s nucleus, as it decays, can be in […]

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Classwork Series and Exercises {Physics – SS1}: Resistors In Series and Parallel

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Physics  SS 1 Week 2 Topic: Resistors in Series and Parallel Introduction Circuits consisting of just one battery and one load resistance are very simple to analyze, but they are not often found in practical applications. Usually, we find circuits where more than two components are connected together. There are two basic ways in which

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Classwork Series and Exercises {Physics}: Energy of Simple Harmonic Motion

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Introduction Kinetic energy is the energy one possesses due to motion. When a pendulum bob swings, it experiences a movement of displacement. The change in position as a result of little application of force, causing motion called kinetic energy. Kinetic energy (K.E) = ½ MV2                                     = ½ MW2 [r2 – y2] Given mass M,

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Classwork Series and Exercises { Physics SS3}: AC IN RESISTOR, INDUCTOR AND CAPACITOR

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Physics SS 3 Week 2 Topic: AC IN RESISTOR, INDUCTOR AND CAPACITOR Alternating Current Direct current (DC) circuits involve current flowing in one direction. In alternating current (AC) circuits, instead of a constant voltage supplied by a battery, the voltage oscillates in a sine wave pattern, varying with time as V = Vo sin ωt.

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If STEM Education Is the Future, What Must Students Do To Be Successful At It?

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If you are observant, you would have come across the word STEM; be it on radio, TV or the internet. What exactly is it? Why is it everyone talking about it? Why is is so important for students? And how can they be successful at it. Put simply, STEM means Science, Technology, Engineering and Mathematics.

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Classwork Series and Exercises {Biology – SS2} – Lenses

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Biology SS 2 Week  2 Topic: LENSES The reflection and refraction we have dealt with so far have focused only on light interacting with flat surfaces. Lenses and curved mirrors are optical instruments designed to focus light in predictable ways. While light striking a curved surface is more complicated than the flat surfaces we have

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Classwork Series and Exercises {Physics – SS3}: Radioactivity

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Physics SS 3 Week 4 Topic: RADIOACTIVITY RADIOACTIVITY Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability. Because the nucleus experiences the intense conflict between the two stronger forces in nature, it should not be surprising that there are many nuclear isotopes which are unstable and emit some

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Classwork Series and Exercises {Physics – SS3}: Model Of Atoms

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Physics SS3 Week 3 Topic: MODEL OF ATOMS Thompson Rutherford Model Modern atomic theory provides a reasonably satisfactory explanation of the properties of matter, the mechanisms of chemical change and the interaction of matter and energy. Such a theory emerged from the synthesis of the work of several scientists, only a few of which will

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See Centripetal Force in Action as Scientist Jumps Off Building (GIF Images)

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Norwegian physicist, Andreas Wahl tied himself to the side of a building 45 feet off the ground in an effort to demonstrate a basic law of physics. The only thing keeping him from falling and potentially breaking a body part, or several, was a cable with a weight attached to the end. At first, the

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