What are some examples of a scientific theory? A scientific theory is a broad explanation that is widely accepted because it is supported by a great deal of evidence. Examples of theories in physical science include Dalton’s atomic theory, Einstein’s theory of gravity, and the kinetic theory of matter. How is evolution both a theory […]
How are primary and secondary windings of a transformer connected?
How are primary and secondary windings of a transformer connected? Generally, the primary winding of a transformer is connected to the input voltage supply and converts or transforms the electrical power into a magnetic field. While the job of the secondary winding is to convert this alternating magnetic field into electrical power producing the required […]
What happens to the period of a pendulum when the mass is doubled?
How do you identify dinosaur footprints?
How do you identify dinosaur footprints? Footprints also tell scientists whether or not the dinosaur held its tail upright. A droopy tail would have left a telltale skid mark behind the footprints. Dinosaur footprints are sometimes found in groups, which (if the tracks are similar in appearance) counts as evidence of herding behavior. Did the […]
Is the sun circumpolar?
Is the sun circumpolar? In the Summer, the Sun is well north of the celestial equator and behaves more like a star near the north celestial pole (more like a circumpolar star) – so it is above the horizon much more than 12 hours. At very northerly latitudes the Sun actually can be circumpolar. The […]
How many times does current change in one second?
How many times does current change in one second? In public power distribution systems in the United States, (including household current), the voltage reverses itself 60 times per second. In some countries, the voltage reverses itself 50 times per second. The rate at which alternating current reverses direction is called its frequency, expressed in hertz. […]
Is Ardi a human ancestor?
Is Ardi a human ancestor? An artist’s rendering of what Ardipithecus ramidus, aka “Ardi,” may have looked like. The team that discovered the fossil, called Ardipithicus ramidus, say it’s the closest thing yet found to the common ancestor of both chimps and humans. That common ancestor is thought to have lived about 6 million years […]
How did Florida attract new settlers?
How did Florida attract new settlers? During the 1800s, Florida attracted settlers to its areas because of the abundant land and water resources. Florida developed in the 1800s when settlers built many towns along the coasts and rivers in areas with natural ports. Why did US want Florida? The United States now wanted control of […]
What are the steps to problem solving in psychology?
What are the steps to problem solving in psychology? Here are the steps involved in problem solving, approved by expert psychologists. Identifying the Problem. Defining/Understanding the Problem. Forming a Strategy. Organizing Information. Allocating Resources. Monitoring Progress. Evaluating the Results. What is problem solving model in psychology? Problem-solving is a mental process that involves discovering, analyzing, […]