What are the 4 types of friendships? Friendship is categorized into four types: acquaintance, friend, close friend and best friend. What are five characteristics of a good friend? The 13 Essential Friendship Traits I am trustworthy. I am honest with others. I am generally very dependable. I am loyal to the people I care about. […]
Why do we use thin gold foil?
Why do we use thin gold foil? For the scattering experiment, Rutherford wanted a metal sheet which could be as thin as possible. Gold is the most malleable of all known metals. It can easily be converted into very thin sheets. Hence, Rutherford selected a gold foil for his alpha-ray scattering experiment. What was most […]
How is flux generated?
How is flux generated? When a coil of wire is moved through a magnetic field a voltage is generated which depends on the magnetic flux through the area of the coil. Electric motors and generators apply Faraday’s law to coils which rotate in a magnetic field as depicted in Figure 3. In this example the […]
Is it possible to increase the temperature of a gas without giving it heat?
Is it possible to increase the temperature of a gas without giving it heat? Yes, during adiabatic compression the temperature of a gas increases while no heat is given to it. In compression work is done on the gas i.e. , work done is negative. Hence, internal energy of the gas increases due to which […]
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. […]
Why is it important to be in the good fitness rating zone?
Why is it important to be in the good fitness rating zone? If your child’s score falls within the Healthy Fitness Zone it means they have achieved the recommended level of fitness for their age. So, your child will not be compared with other children. Your child will get personalized information on his or her […]
What element can make the most bonds?
What element can make the most bonds? Hydrogen Can an atom have 7 bonds? Meallic elements can definiely have more than eight valence electrons, however they do not tend to form covalent bonds. Therefore the maximum number of covalent bonds should be said to be 7, with the exception of some noble gases since they […]
What is an unhealthy simple sugar?
What is an unhealthy simple sugar? This type of sugar, called added sugar, is considered “bad sugar.” In its most processed and refined form (think the white powdery stuff we stir into coffee, or high fructose corn syrup in soft drinks and packaged foods), sugar has absolutely no nutritional value. Are bananas simple sugars? Your […]
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 kind of energy is striking a match?
What kind of energy is striking a match? chemical energy When you light a match which energy transformation happens first? Mechanical energy is energy associated with the motion and position of an object. When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required […]