What are the two main ideas in the kinetic theory of matter? The simplest kinetic model is based on the assumptions that: (1) the gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size; (2) the molecules undergo perfectly elastic collisions […]
What happens when two waves of different frequencies are added together?
What happens when two waves of different frequencies are added together? When two waves of similar frequency arrive at the same point and superimpose, they alternately constructively and destructively interfere. This alternating is known as a beat because it produces an unpleasant pulsing sound. This varying loudness occurs because the sound waves have similar but […]
What are three types of projectiles?
What are three types of projectiles? Three types of projectiles— the bullet, the round ball, and shot—are used in muzzleloaders. How do projectiles behave? A projectile is an object upon which the only force is gravity. Gravity acts to influence the vertical motion of the projectile, thus causing a vertical acceleration. Horizontal forces are not […]
What material is used in thermometer?
What material is used in thermometer? Mercury What type of error is a reading error? Systematic Errors A student may make an error by reading the volume by looking at the liquid level near the edge of the glass. Thus this student will always be off by a certain amount for every reading he makes. […]
What are 2 human activities that affect land resources?
What are 2 human activities that affect land resources? Secondly, how do human activities affect the land? Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. What is the key difference between renewable and […]
How do we determine a charged object?
How do we determine a charged object? The quantity of charge on an object reflects the amount of imbalance between electrons and protons on that object. Thus, to determine the total charge of a positively charged object (an object with an excess of protons), one must subtract the total number of electrons from the total […]
What are the 6 layers of soil?
What are the 6 layers of soil? Layers of Soil The O-Horizon. The A-Horizon or Topsoil. The E-Horizon. The B-Horizon or Subsoil. The C-Horizon or Saprolite. The R-Horizon. Recommended Video: Tensiometers. What are 3 main factors used to classify soils? What are three main factors used to classify soils? Soils are classified based on climate, […]
Is a paramecium more like a plant or animal?
Is a paramecium more like a plant or animal? A paramecium is animal-like because it moves and searches for its own food. The have characteristics of both plant and animal. Sometimes they make food and sometimes they don’t. A spirogyra is plant-like because of the presence of chlorophyll which allows it to make its own […]
How is a frame of reference used to describe motion?
Is concave or convex better?
Is concave or convex better? Concave is better if you press and drag the analog sticks to move them. Convex is better if you push the analog sticks with your thumb to move them. Is a Heptagon convex or concave? Heptagons and other polygons can also be classified as either convex or concave. If all […]