hertz is used to describe the frequency at which these signals oscillate or alternate between high and low states. it represents the number of cycles completed by an electronic wave in one second. for example, in digital systems, clock signals have a specific frequency, measured in a hertz, ...
How to use frequency words to describe daily routines and form natural pronunciation and intonation. 3.While-listening (1) Listen to the tape for the first time, and circle their answers to each question (1c). Later the teacher will invite some students to share their answers. (2) Listen...
You can also play a more challenging version where they have to stop before they make a mistake, as they lose all the points from that round if they say something untrue. A more serious activity is for students to use the frequency expressions to describe things like people in their ...
The range, standard deviation and variance describe how spread your data is. The range is the easiest to compute while the standard deviation and variance are more complicated, but also more informative. Range Standard deviation Variance Tofind the range, subtract the lowest from the highest value...
How to calculate spring constant k? Describe the energy changes that occur during one oscillation of the simple harmonic oscillator shown in figure 4.1. What is the magnitude of the amplitude of a spring-mass system where the angular frequency is 1 rad/s, and the mass is at 4 cm at 1 ...
A better way to describe income is to figure out the median— or the middle wage. If you took that same list of incomes and found the median, you would get a more realistic representation of income. The median is the middle number, so if you placed all of the incomes in a list (fr...
Describe a scenario where the recessive allele frequency would increase. How are autosomal chromosomes different from gametes? What is the principle behind homologous recombination, and what can it be used for in the laboratory? How does crossing over lead to recombinant gametes? How do chromosomes ...
Adverbs of frequency explain how often something occurs. In french, these words include encore, jamais, parfois, quelquefois, rarement, and more.
Say hello to everyone and then show some pictures ,ask them questions, ”Can you describe what is happening in the picture?” and lead in the topic of today’s lesson---How often do you exercise? Step 2: Pre-listening Learn the new phrases: read English books, use the Internet, go ...
When using the past continuous to describe an ongoing action that was interrupted by another action, the interrupting action itself should be in the simple past, not the past continuous. The birds were sunning themselves in peace before the dog was running up. The birds were sunning themselves ...