THE SCIENTIST WHO STATED THAT MATTER CAN BE CONVERTED INTO ENERGY IS
A. Boyle B. Lavoisier C. Avogadro D. Einstein ✓ The answer to the question is: D. Einstein The scientist who stated that matter can be converted into energy is Einstein. This concept is encapsulated in his famous equation E=mc^2, where E represents energy,…
WHICH PROCESS IS RESPONSIBLE FOR PRODUCTION OF ENERGY IN STARS
A. Nuclear reaction B. Nuclear fission C. Nuclear fusion ✓ D. Radioactive decay The answer to the question is: C. Nuclear fusion The process responsible for the production of energy in stars is nuclear fusion. Nuclear fusion is the process by which multiple…
A PHOTON HAS A FREQUENCY OF 5.02 X 10^14 HZ, CALCULATE THE ENERGY OF THE PHOTON IN JOULES AND ELECTRON VOLTS
(i) To calculate the energy of a photon in joules, we can use the formula: E = hf Where E is the energy of the photon, h is Planck’s constant, and f is the frequency of the photon. Given: Frequency…
ENERGY CHANGES IN SYSTEMS
Introduction Energy changes can occur in physical and isolated systems, which refer to different types of systems based on their ability to exchange energy with their surroundings. Let’s look at each of these systems in detail. 1) Physical Systems: Physical…
ENERGY QUANTIZATION EXPLAINED
Introduction Energy quantization refers to the idea that energy can only exist in discrete units or quanta, rather than being continuous. This concept is a fundamental aspect of quantum mechanics, which is a branch of physics that describes the behavior…
BOND ENERGY AND DISSOCIATION
Introduction Bond energy refers to the amount of energy required to break a chemical bond and separate the constituent atoms or molecules. Bond energy is typically expressed in units of kilojoules per mole (kJ/mol) and is an indication of the…
THE ULTIMATE GUIDE TO WORK, ENERGY AND POWER
Concept of work as a measure of energy transfer The concept of work as a measure of energy transfer is fundamental in physics. In simple terms, work is the energy transferred to or from an object by a force acting…
ENERGY IN PHYSICS
Energy is defined as the ability of a system to perform work. It is a scalar quantity that is associated with objects and systems that have the ability to do work or cause changes in other objects or systems. There…
EARTH ENERGY SYSTEM
Insolation The only source of energy for the earth’s atmosphere is the sun which has a surface temperature of more than 5982°C (10 800°F). The energy travels through space for a distance of 150 million km (93 million miles) and…
THERMAL ENERGY
Introduction Thermal energy simply means heat energy. The sun is the largest source of thermal energy to the Earth. Virtually all life on the earth rely on the sun’s energy, which reaches us in a vast spectrum of wavelengths –…
KINETIC ENERGY ASSUMPTIONS
The question about what things are made of started as far back as the 5th century B.C. when a Greek Philosopher, Democritus, first expressed his opinion that matter is made up of indivisible tiny particles which he called atoms. Scientists…
ENERGY TRANSFORMATION IN NATURE
Energy exists in various forms. These forms of energy are inter-convertible, i.e ., one form of energy can be transformed into another form. Such energy transformation are governed by the laws of thermodynamics. In nature, energy transformation is brought about…
RESPIRATORY SYSTEM
Respiratory system includes all the organs and tissues associated with the exchange of gases between an animal and its environment, leading to the release of energy. The purpose of respiration is to supply oxygen to the cells which oxidise or…
CLEAN AND RENEWABLE ENERGY
Renewable energy is defined as any energy resource that is naturally regenerated over a short time scale and derived directly from the sun (such as thermal, photochemical, and photoelectric), indirectly from the sun (such as wind, hydropower, and photosynthetic energy…
Study Guide
