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New exercises from Khan Academy 2022-01-21T14:07:15.000000
Actualizado: hace 5 mins 14 segs

Contraceptives - IUDs and Pills - 1

Vie, 2022-01-21 14:07
An exercise to test the understanding of the working of various intrauterine devices and pills

Contraceptives - IUDs and Pills - 2

Vie, 2022-01-21 14:06
The exercise explores the mechanisms of action of various IUDs and contraceptive pills

Area of parts of circles

Mar, 2022-01-18 22:13
Practice finding the area of part of a circle.

Area and circumference of circles challenge

Mar, 2022-01-18 20:23
Practice interesting area and circumference problems.

Periodic trends

Mar, 2022-01-18 17:32
Check your understanding of periodic trends in this set of free practice questions designed for AP Chemistry students.

Distributive property with variables (negative numbers)

Mar, 2022-01-18 15:51
Factor and expand expressions like -3x-9 by applying the distributive property.  Expressions include variables and negative numbers.

Combining like terms with rational coefficients

Mar, 2022-01-18 15:44
Practice combining like terms for expressions that have rational coefficients. This requires adding and subtracting fractions.

Contraceptives - natural, barrier, and surgical

Lun, 2022-01-17 14:12
Principles of natural methods, barrier methods, and surgical methods of contraceptives

Electromagnetic induction

Lun, 2022-01-17 06:31
Let's practice some problems to test our understanding of electromagnetic induction.

Division by 2-digits

Lun, 2022-01-17 03:44
Divide 3-digit and 4-digit numbers by a 2-digit number.  Some quotients include remainders.

Add and subtract fractions word problems

Lun, 2022-01-17 03:30
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators.

Two-step inequality word problems

Lun, 2022-01-17 02:41
Practice constructing, interpreting, and solving linear inequalities that model real-world situations.

Time differences

Lun, 2022-01-17 02:21
Practice finding the difference between times given on two analog clocks. Time differences cross over the hour.

Rationalising the denominator (advanced)

Lun, 2022-01-17 02:00
Rationalising the denominator (advanced)

nth term challenge problems

Lun, 2022-01-17 02:00
Learn how to find which term are we talking about given its speciality or property.

Faraday's law - existence of induced emf - ii

Dom, 2022-01-16 15:56
Using Faraday's law, let's analyze some more interesting situations and determine if an EMF will be induced or not.

Convert galvanometer into ammeter/voltmeter

Sáb, 2022-01-15 06:42
A galvanometer is a sensitive instrument with a small range of currents it can measure. Let's solve some problems to better understand how to convert a galvanometer into an ammeter or voltmeter with a bigger range of measurements.

Solving proportions

Vie, 2022-01-14 23:51
Practice solving basic proportions.

Identify proportional relationships

Vie, 2022-01-14 23:49
Practice telling whether or not the relationship between two quantities is proportional by looking at a table of the relationship.

Proportional relationships

Vie, 2022-01-14 23:49
Practice telling whether or not the relationship between two quantities is proportional by reasoning about equivalent ratios.