What is the relationship between buoyancy and volume? Compressible objects As a floating object rises or falls, the forces external to it change and, as all objects are compressible to some extent or another, so does the object’s volume. Buoyancy depends on volume and so an object’s buoyancy reduces if it is compressed and increases […]
When would you use cumulative frequency?
When would you use cumulative frequency? Cumulative frequency is used to determine the number of observations that lie above (or below) a particular value in a data set. The last value will always be equal to the total for all observations, since all frequencies will already have been added to the previous total. What is […]
What are 2 main types of scientific inquiry?
What are 2 main types of scientific inquiry? The word Science is derived from Latin and means “to know” Inquiry is the search for information and explanation. There are two main types of scientific inquiry: discovery science and hypothesis-based science. What is the scientific method of discovery? The process in the scientific method involves making […]
What is the longest thunderstorm recorded?
What is the longest thunderstorm recorded? A new world record lightning strike of 440 miles has been confirmed by the World Meteorological Organization, according to a Thursday announcement. The “megaflash” traveled that distance over parts of southern Brazil on Oct. 31, 2018, the WMO said. This is equivalent to the distance between Washington, DC, and […]
What is the principle of fluid displacement in biology?
What is the principle of fluid displacement in biology? What is Archimedes’ principle? A body at rest in a fluid is acted upon by a force pushing upward called the buoyant force, which is equal to the weight of the fluid that the body displaces. If the body is completely submerged, the volume of fluid […]
Which real world scenarios represent physical changes?
Which real world scenarios represent physical changes? Answer Expert Verified. Answer is: mixing water and powdered drink mix, combining oil and vinegar to make salad dressing, diluting bleach with water and dinner spreading peanut butter on bread. Physical property can be observed and measured without any changes in molecular composition. Which of these is an […]
What is the relation between magnetic field and current and distance?
What can we use iodine to test for?
What can we use iodine to test for? In the presence of starch, iodine turns a blue/black colour. It is possible to distinguish starch from glucose (and other carbohydrates) using this iodine solution test. For example, if iodine is added to a peeled potato then it will turn black. Benedict’s reagent can be used to […]
Can I do 500 push ups a day?
How do you write pounds in short form?
How do you write pounds in short form? Abbreviation ‘lb’ for pound. What is the meaning of QT? quiet What is the C Money symbol? $ What does C stand for in quantity? Coulomb, unit of electric charge in the metre-kilogram-second-ampere system, the basis of the SI system of physical units. It is abbreviated as […]