Category: Physics

Do you have to preheat a convection oven? Yes, all convection ovens need to be preheated. In some modes, more than one element is used during preheat, which can cause the food to burn. The oven will indicate when it has finished a preheat cycle. You should always start with a hot oven or a […]

Is bamboo a forest product? The Union Ministry of Environment and Forests has asked states to treat bamboo as a minor forest produce (MFP). They insist that since the Indian Forest Act 1927 treats bamboo as a tree, it cannot be treated as an MFP (see ‘Is bamboo a tree or a grass’, Down to […]

What are the 4 phases of moon? The four primary moon phases are: New Moon. First Quarter. Full Moon. Third Quarter (Last Quarter) What are the 7 phases of the moon? They are: the New Moon; Waxng Crescent; First Quarter (or half-full; Waxing Gibbous; Full Moon; Waning Gibbous; Last Quarter (half-full on other side); Waning […]

What is the ocular lens used for on a microscope? Ocular Lens – The ocular lens, or eyepiece, magnifies the image. It contains a measuring scale called and ocular micrometer. The ocular micrometer has no units. Revolving Nose Piece – Several objective lenses of varying magnification and numerical aperture are mounted on the revolving nosepiece. […]

What is the slope of the line with vector equation? Clearly the answer is that the slope is the dot product of the two vectors: slope = g · u. There are two ways to think of the slope of a linear function in a given direction. We can use a symbol, such as s, […]

What are two types of energy that can be released when something burns? When we burn Natural Gas, the chemical energy is converted into light and heat. Chemical energy is energy that is stored in the bonds between chemical compounds. It is released when a chemical reaction takes place. What types of energy does the […]

Can a graph have 2 y axis? When the data values in a chart vary widely from data series to data series, or when you have mixed types of data (for example, currency and percentages), you can plot one or more data series on a secondary vertical (Y) axis. Can you have two Y axis […]

What is selective breeding and why is it important? Selective breeding, also known as artificial selection, is a process used by humans to develop new organisms with desirable characteristics. Selective breeding can be used to produce tastier fruits and vegetables, crops with greater resistance to pests, and larger animals that can be used for meat. […]

What is gravitational equilibrium? Hydrostatic equilibrium, also known as gravitational equilibrium, describes a balance between gravity and pressure. Gravity works to contract while pressure works to expand. Hydrostatic equilibrium is the state where the force of gravity pulling inward is balanced by pressure pushing outward. What is heating the corona? The coronal heating problem in […]

What is metal ductility? Material properties Ductility is the ability of a material to be drawn or plastically deformed without fracture. It is therefore an indication of how ‘soft’ or malleable the material is. The ductility of steels varies depending on the types and levels of alloying elements present. Is all metals are ductile? Answer […]