Will a positive charge initially at rest move toward higher or lower potential? Positive charges, starting from rest, will accelerate from regions of high potential and move toward regions of low potential. Negative charges, starting from rest, will accelerate from regions of low potential and move toward regions of high potential. Does the electric potential […]
What are the elements of cognitive development?
What are the elements of cognitive development? Cognitive development is how a person perceives, thinks, and gains understanding of their world through the relations of genetic and learning factors. There are four stages to cognitive information development. They are, reasoning, intelligence, language, and memory. What are cognitive skills in a child? Cognitive skills include attention, […]
Which direction does the jet stream flow?
Which direction does the jet stream flow? Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. The winds blow from west to east in jet streams but the flow often shifts to the north and south. Jet streams follow the boundaries between hot and cold air. How far […]
What is the scale for wind speed?
What is the scale for wind speed? The Beaufort scale is a scale for measuring wind speeds. It is based on observation rather than accurate measurement. It is the most widely used system to measure wind speed today. The scale was developed in 1805 by Francis Beaufort, an officer of the Royal Navy and first […]
How do you hear a sound for Class 3?
How do you hear a sound for Class 3? How people hear: Sound waves are sent. Waves travel through pinna and into ear canal (outer ear). Eardrum vibrates as sound waves enter the ear canal. Three tiny bones in the middle ear called the ossicles (Hammer, Anvil and Stirrup) vibrate. Cochlea transfers sound waves into […]
What two things does weight depend on?
What two things does weight depend on? weight ( ) 1. The force with which an object near the Earth or another celestial body is attracted toward the center of the body by gravity. An object’s weight depends on its mass (the amount of matter it consists of) and the strength of the gravitational pull. […]
What are the two processes of erosion?
What are the two processes of erosion? Erosional processes along coastlines include: (1) the direct effects of hydraulic action, wedging, and cavitation by waves; (2) abrasion (corrasion), using sand, gravel, and larger rock fragments as tools; (3) attrition of the rock particles themselves during this abrasive action; (4) salt weathering or fretting; (5) … What […]
At what time the maximum power is delivered to the inductor?
At what time the maximum power is delivered to the inductor? The time at which power delivered to the inductor is maximum is obtained by equating the derivative of power to zero. How do you verify the maximum power transfer theorem? Condition for Maximum Power Transfer Therefore, the condition for maximum power dissipation across the […]
What is the first organ to receive oxygenated blood?
What is the first organ to receive oxygenated blood? Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium […]
What are the physical properties used to identify rock forming minerals?
What are the physical properties used to identify rock forming minerals? Key Concepts Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage. Crystal form, cleavage, and hardness are determined primarily by the crystal structure at the atomic level. Color and density are determined primarily by […]