How do we use science in our everyday life? Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, leisure, and exploration. It’s almost impossible to overstate how many aspects of modern life are impacted by scientific knowledge. What are 3 benefits of science? The advantages of Science and […]
Can you walk on Pluto?
Can you walk on Pluto? If you were to go off exploring Pluto’s surface, you shouldn’t expect a long trip. Pluto is only about two-thirds as wide as Earth’s moon and has about the same surface area as Russia. Additionally, its gravity is only one-fifteenth that of Earth’s, so you’d only weigh 10 lbs. Are […]
Do atoms lose energy when they collide?
Is Absolute Zero Possible?
Is Absolute Zero Possible? Absolute zero, technically known as zero kelvins, equals −273.15 degrees Celsius, or -459.67 Fahrenheit, and marks the spot on the thermometer where a system reaches its lowest possible energy, or thermal motion. There’s a catch, though: absolute zero is impossible to reach. How do you explain thermodynamics to a child? Thermodynamics […]
Are enzymes used up in a reaction?
Are enzymes used up in a reaction? Enzymes are not reactants and are not used up during the reaction. Once an enzyme binds to a substrate and catalyzes the reaction, the enzyme is released, unchanged, and can be used for another reaction. This means that for each reaction, there does not need to be a […]
What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead?
What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead? The photosphere appears bright yellow (almost white) as viewed from the ground on a clear, cloudless day. As the Sun approaches the horizon over an ocean, the photosphere appears orange-yellow and as the Sun […]
What determines how much load a stream can carry?
What determines how much load a stream can carry? The ability of streams to carry a load is determined by 2 factors: Competence and Capacity. Competence of a stream measures the largest PARTICLES it can transport. A stream’s competence increases with it velocity. The competence of a stream increases 4 times-when the velocity doubles. What […]
Is a person sitting on a chair balanced or unbalanced?
Is a person sitting on a chair balanced or unbalanced? When you sit in a chair, you are in equilibrium. The support force acting on you balances out your weight. As the name suggests, unbalanced forces is where one force is greater than the other, acting in the opposite direction. Why do rockets fly east? […]
What amount of heat would be required to raise the temperature of 500g of water from 30 C to 50 C?
What are the disadvantages of passive solar heating?
What are the disadvantages of passive solar heating? Disadvantages of Passive Solar Energy Limited Power Capabilities. Electrical power. Due to the nature of solar energy, it is only possible to generate a limited amount of power. Upfront Costs. Cost. Installing and maintaining a passive solar energy system is expensive. Climate Dependent. Clouds block sunlight. Appearance. […]