29 results authored by Evi Papadaki  search across all users.

Question in MASH Bath: Question Bank
Solving a separable differential equation that describes the rate of decay of radioactive isotopes over time with a known initial condition to calculate the mass of the isotope after a given time and the time taken for the mass to reach $m$ grams.
Decay Constant  Radioactivity  Nuclear Power (nuclearpower.com)

Exam (20 questions) in Evi's workspace
A portfolio of NUMBAS questions created for first year Natural Sciences students. The questions cover the topics:
 Linear functions
 Quadratic functions
 Differentiation
 Integration
 Explonatial and logarithms
 Further differentiation
 Further Integration
 Trigonometric Functions

Question in MASH Bath: Question Bank
Using given information to complete the equation $c= A \cos{ \left( \frac{2 \pi}{P} \left( tH \right) \right) }+V $ that describes the concentration, $c$, of perscribed drug in a patient's drug over time, $t$. Calculating the maximum concentration and the concentration at a specific time.

Question in MASH Bath: Question Bank
Calculating the rate of change of the temperature during a chemical reaction using the chain rule in a function of the form $T=ate^{t}$, and finding the maximum temperature of the reaction.

Question in MASH Bath: Question Bank
Using basic derivatives to calculate the gradient function of a hill $y=e^{x}+b\ln{\left(x\right)+c$, and then substituting values to find the gradient at specific distance from the sea.

Question in MASH Bath: Question Bank
Knowing the halflife of Carbon14 and the initial mass of Carbon14 when a tree was cut (a) write an expression that describes the relationship between the remaining mass and time, (b) calculate the remaining mass after $t$ years, and (c) given the remaining mass calculate how many years ago the tree was cut down.

Question in MASH Bath: Question Bank
Knowing the doubling time of a population and the population on day $t$, calculate the initial population and the number of days required for the population to reach a threshold.

Question in MASH Bath: Question Bank
Calculating area under curves of the form $ax^2+bx$ and $ax^4+bx^3+cx^2+dx+e$ in a contextualised problem.

Question in MASH Bath: Question Bank
Finding the stationary point (maximum) of a quadratic equation in a contextualised problem.

Question in MASH Bath: Question Bank
Calculating the gradient of a quadratic equation at a specific point and finding the stationary point (maximum) in a contextualised problem.

Question in MASH Bath: Question Bank
The relationship between the frequency of an allele A, $x$, at a genetic locus in a diploid population and the fitness of a population with this frequency of allele A, $w$, is described by the function $w=ax^2+x(bx)+c(bx)^2$ . The aims are (a) ti simplify the algebraic expression, (b) calculate the fitness of a population with a given allele A frequency, and (c) calculate the allele A frequency when the fitness of the population is given.

Question in MASH Bath: Question Bank
The proportion of the sodium carbonate, $p$, which has dissolved by time $t$ seconds is given by the formula $ p=\frac{btat^2}{c}$. The aim is to calculate the proportion of sodium carbonate in a solution at a given time and vice versa.

Question in MASH Bath: Question Bank
Estimating the proportion of sodium carbonate in a solutionat a specific timepoint and vice versa, depicted as a quadratic graph.

Question in MASH Bath: Question Bank
Practicing skills required for sketching line graphs depicting the temperature of a mixture according to time. The question includes: a) choosing the accurate sketch from a list, and b) identifying the initial temperature of the mixture.

Question in MASH Bath: Question Bank
Practicing skills required for sketching line graphs depicting DNA melting temperature according to the percentage of GC content. The question includes: a) identifying the vertical intercept, b) choosing the accurate sketch from a list, and c) interpreting elements of the sketch in context.

Question in MASH Bath: Question Bank
Interpreting line graphs depicting the melting temperature of DNA depending on the percentage of GC content. Estimating the melting temperature given a GC percentage and vice versa.

Question in MASH Bath: Question Bank
Interpreting line graphs depicting the decrease of temperature in a mixture over time. Estimating the temperature of the mixture at a given time point and vice versa.

Exam (4 questions) in MASH Bath: Moodle quizzes and TS
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Question in MASH Bath: Question Bank
Using the given information to complete the equation $y= A \cos{ \left( \frac{2 \pi}{P} x \right) }+V $ that describes an electromagnetic wave and calculating the smallest angle, $x$, for which $y=y_0$.

Question in MASH Bath: Question Bank
Solving a separable differential equation that describes the population growth over time with a known initial condition to calculate the population after $n$ years.

Question in MASH Bath: Question Bank
Integrating a polynomial functions which describe the rate of change of a population over time to find and use an equation that describes the total population according to time.

Question in MASH Bath: Question Bank
The question includes a quadratic graph depicting the relationship between the frequency of an allele A at a genetic locus in a diploid population and the fitness of a population with this frequency of allele A. The aim is to estimate the maximum and minimum fitness of the population and the corresponding frequency of allele A.

Exam (2 questions) in MASH Bath: Moodle quizzes and TS
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Exam (4 questions) in MASH Bath: Moodle quizzes and TS
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Exam (2 questions) in MASH Bath: Moodle quizzes and TS
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Exam (2 questions) in MASH Bath: Moodle quizzes and TS
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Exam (2 questions) in MASH Bath: Moodle quizzes and TS
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Exam (2 questions) in MASH Bath: Moodle quizzes and TS
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Exam (2 questions) in MASH Bath: Moodle quizzes and TS
No description given