Category: Physics

What is a food chain explain with diagram? A food chain is a linear diagram showing how energy moves through an ecosystem. It shows only one pathway out of the many possibilities in a specific ecosystem. What are the 4 food chains? Once students understand, have them draw the sun, a producer, a primary consumer, […]

What are examples of responses? Response: how the organism reacts to a stimulus and results in a change in behavior. (It is a fancy way of saying “effect”.) Example: Getting a drink when you are thirsty. What are the types of responses? Types of Responses Agree/Disagree Response. Interpretive/Reflective Response. Analytic/Evaluative Response. What are the four […]

How much energy does it take to heat 1 gram of a substance 1 degree C? It requires 4.18 J of energy to change the temperature of 1 gram of liquid water by 1°C (or 1 K). How much thermal energy is required to completely melt all the ice? The equation is straightforward, so the […]

How is energy transferred between stores? The log’s energy can be shifted to a thermal store in the surroundings by burning it. The energy transfer occurs by convection (particle movement) and by radiation of heat and light. The battery’s energy can be shifted to a kinetic store in a spinning motor by electrical work. How […]

What describes a concave lens? A concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct […]

What are some patterns of the moon? An easy way to remember and understand those “between” lunar phase names is by breaking out and defining 4 words: crescent, gibbous, waxing, and waning. The word crescent refers to the phases where the moon is less than half illuminated. The word gibbous refers to phases where the […]

How many electron domains does CO2 have? 2 electron domains How do you count electron domains? Count the total number of electron domains. Use the angular arrangement of the chemical bonds between the atoms to determine the molecular geometry. Keep in mind, multiple bonds (i.e., double bonds, triple bonds) count as one electron domain. In […]

What is relation between CP and CV? The specific heat of gas at constant volume in terms of degree of freedom ‘f’ is given as: Cv = (f/2) R. So, we can also say that, Cp/Cv = (1 + 2/f), where f is degree of freedom. Monoatomic gas has only one translational motion, hence three […]

How can you tell if a graph is polar? Solution: Identify the type of polar equation The polar equation is in the form of a limaçon, r = a – b cos θ. Since the equation passes the test for symmetry to the polar axis, we only need to evaluate the equation over the interval […]

Which nuclei has least gyromagnetic ratio? The term “gyromagnetic ratio” is often used as a synonym for a different but closely related quantity, the g-factor. The g-factor, unlike the gyromagnetic ratio, is dimensionless….For a nucleus. Nucleus (106 rad⋅s−1⋅T−1) (MHz⋅T−1) 15N −27.116 −4.316 17O −36.264 −5.772 19F 251.815 40.078 23Na 70.761 11.262 How do you calculate […]