Light Energy Essay Examples

Light Energy

Investigation to find out how light intensity effects the rate of photosynthesis
Words • 3198
Pages • 12
Flowering plants, like all living organisms, need a supply of food. They need it as a source of energy in respiration and they need it as raw material for growth and repair. Animals and most micro- organisms get their food in an organic form: they eat products from other organisms (such as fruit and eggs) or, nowadays, the organic substances made in laboratories and factories. Animals and the microorganisms that do this are called consumers. Due to the flowering plants…...
Investigation into factors affecting the speed of a car rolling down a ramp
Words • 4303
Pages • 16
The following investigation that I am going to embark on will involve the transfer of energy from one form to another. Usually when there is a transfer of energy from one component to another, these constituents are parts of machines or mechanisms, which are collectively classed as systems. In any one system there could be just one energy transfer or numerous transfers of energy. However, when we are dealing with systems, we must remember that there is no system that…...
Light Affect on Plant Growth
Words • 394
Pages • 2
For this Science assignment, I chose to find out if the color of light a plant receives, affects the plant growth. Light is electromagnetic radiation that comes in waves, the basic units of which are called photons. Plants use light to turn carbon dioxide into sugars necessary for growth, a process called photosynthesis. Sunlight is a full spectrum of different wave lengths of light. Seen through a prism, this spectrum turns into bands of color: red, orange, yellow, green, blue,…...
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The Electromagnetic Spectrum
Words • 1695
Pages • 7
We use the electromagnetic spectrum every day it’s the microwave you use to heat your food and the cell phones you use to text! Those are part of the Electromagnetic Spectrum. The light that our eyes can see is also part of the electromagnetic spectrum. This visible part of the electromagnetic spectrum consists of the colors that we see in a rainbow - from reds and oranges, through blues and purples!! The electromagnetic spectrum has 7 parts to it, radio…...
Photosynthesis and Cellular Respiration
Words • 1021
Pages • 4
Cells of all organisms are capable in acquiring the energy necessary to fuel chemical reactions for growth, repair, survival, and reproduction. Photosynthesis & cellular respiration are the main pathways of energy flow in living things. Photosynthesis is a process by which plants and some other organisms convert, light energy from the sun, CO2 from the air & H2O from the earth, into chemical energy stored in molecules like glucose. Cellular respiration is a process in which O2 is delivered to…...
How light intensity effects the rate of photosynthesis
Words • 1826
Pages • 7
In my investigation I am going to establish the effect of changing light intensity on the rate of photosynthesis. What is Photosynthesis? Photosynthesis is how plants get their food. The reason why plants have leaves, roots or being green is all linked to photosynthesis. In photosynthesis, a plant takes carbon dioxide from the air and water from the soil and uses the light from sunlight to turn them into food. Photosynthesis occurs only in the presence of light, and takes…...
Energy Transfer
Words • 496
Pages • 2
For us to do work, we need energy. Energy is measured in joules, (J) or kilojoules (kJ) Energy exists in many different forums such as Kinetic and potential energy – Kinetic energy is the movement of energy and potential is stored energy, energy ready to go. A lawn mower filled with gasoline, a car on top of a hill, and students waiting to go home from school are all examples of potential energy. Gravitational potential energy is the energy crazed…...
Calorimetry and Hess’s Law
Words • 1624
Pages • 6
Elemental magnesium is one of the principal components of flares used to illuminate nighttime activities, or to aid in signaling one’s location to aircraft and ships. Your instructor may ignite a strip of magnesium ribbon to demonstrate the combustion of magnesium in air. It will be evident that a great deal of light energy is released from this reaction. A direct method for measuring the heat produced by this reaction would be difficult, so we shall resort to an indirect…...
To investigate the effect of carbon dioxide concentration on the rate of photosynthesis
Words • 503
Pages • 2
Introduction Photosynthesis is a process that is essential for every living organism. Organic substances, such as glucose, are made from carbon dioxide and water by light energy from the sun. The light energy is absorbed by chlorophyll and converted to chemical energy. During the process, oxygen is released as a by-product. The rate of photosynthesis is affected by a few of factors, including light intensity, temperature, availability of water and carbon dioxide concentration. The purpose of this experiment was to…...
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FAQ about Light Energy

Investigation to find out how light intensity effects the rate of photosynthesis

...Like all experiments there is always room for improvement and this one is no exception. My main limitation was time. If there had been enough time I could have carried out the same experiments but in various different ways, another problem that occur...

How light intensity effects the rate of photosynthesis

...I and my group all learnt that after an intensive investigation into how the rate of photosynthesis is affected by the amount of light intensity that the higher the light intensity the faster the rate of reaction. We also learnt that if the light int...