New exercises from Khan Academy 2021-09-14T20:54:49.000000
Aggiornato: 1 ora 59 min fa
Practice identifying weak acids and strong acids
Given the explicit formula of an arithmetic sequence, find its recursive formula, and vice versa.
This exercise builds an understanding of what it means for ratios to be equivalent or not be equivalent.
Check your understanding of Newton's law of universal gravitation in this set of free practice questions aligned to NGSS standards.
Use various formulas to solve real world problems while attending to the units of the quantities that make up the formulas.
Let's practice some problems to get better at solving circuits with multiple cells in series or parallel combinations.
Let's practice some problems to better understand how the internal resistance of a cell influences the terminal voltage and the current that can be drawn from it.
Drift velocity of electrons in a current is related to several factors. Let's practice some problems to better understand how it's affected by changes in those factors.
Let's practice some problems to better understand how the resistivity of a conductor varies with small changes in temperature.
Find the length of the hypotenuse or a leg of a right triangle using the Pythagorean theorem.
Refine definitions of rigid transformations. Given a description of the effect of a transformation, determine which rigid transformation it is.
Use visual models to understand division.
Write numbers in number and word form within 1000.
Solve word problems that involve converting between US customary measures of distance, volume, and mass.
Check your understanding of the World Wide Web and HTTP in this set of free practice questions designed for AP Computer Science Principles students.
Represent fractions as whole numbers and whole numbers as fractions.
Determine whether fractions are greater than, less than, or equal to one.
Plot and spot fractions on the number line.
A check for understanding of the Using course mastery on Khan Academy lesson.
Exercise on understanding the Bronsted-Lowry concept of acids and bases