Using (a-b)^2
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Pressure inversely proportional to the volume
The pressure, P, Pa, of an object, is inversely proportional to the volume of a cube.
The pressure is 1000 Pa when the length of the cube is l cm.
Find the new pressure when the length of the cube increases by 400%.
Happiness Index Pictogram
It is not clear whether the Happiness Index of the different years is compared based on the height of the smiley faces or the area of the smiley faces.
Depending on which criteria are used to compare the happiness index of the different year, the data can have a different interpretation.
Force inversely proportional to the square of the distance
Distance between 2 points
Toothpicks Figures
s is directly proportional to the square of v
s is directly proportional to the square of v. It is known that s = 36 for a particular value of v.
Find the value of s when this value of v is halved.
Cubic Polynomial
Describe in terms of the arrangement and movement of particles, the process of ice melting.
When ice melts, the heat energy gained from surroundings is used to weaken the bonds between particles. The movement of the particles changes from vibrating in fixed positions in the solid state to moving and sliding over one another freely in confined spaces in the liquid state. The arrangement of the particles changes from regularly arranged, tightly packed together in the solid state to irregularly arranged, close together in the liquid state.
The average kinetic energy of the particles remains constant, so temperature remains constant during melting.
tan (cos-1 x)
