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Exponents and Powers | Assess
Exponents and Powers | Study
GRAVITATION | Study
HERON’S FORMULA | Assess
Light | Assess
Light | Study
Living Creatures: Exploring their Characteristics | Assess
Living Creatures: Exploring their Characteristics | Study
Playing with Constructions | Assess
Exponents and Powers | Study
Mind Map Overal Idea Content Speed Notes Quick Coverage Exponents are used to express large numbers in shorter form to make them easy to read, understand, compare and operate upon. (Scroll down till end of the page) Study Tools Audio, Visual & Digital Content Expressing Large Numbers in the Standard Form: Any number can be readmore
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Exponents are used to express large numbers in shorter form to make them easy to read, understand, compare and operate upon. (Scroll down till end of the page)
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Expressing Large Numbers in the Standard Form: Any number can be expressed as a decimal number between 1.0 and 10.0 (including 1.0) multiplied by a power of 10. Such form of a number is called its standard form or scientific motion. Very large numbers are difficult to read, understand, compare and operate upon. To make all these easier, we use exponents, converting many of the large numbers in a shorter form. The following are exponential forms of some numbers?
Here, 10, 3 and 2 are the bases, whereas 4, 5 and 7 are their respective exponents. We also say, 10,000 is the 4th power of 10, 243 is the 5th power of 3, etc. Numbers in exponential form obey certain laws, which are: For any non-zero integers a and b and whole numbers m and n,
(g) (–1) even number = 1 (–1) odd number = – 1
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Advanced Tools For Study Assess Interact GRAVITATION | Study
Mind Map Overal Idea Content Speed Notes Quick Coverage Content Study Tools Content … Key Terms Topic Terminology Term: Important Tables Topic Terminology Term: Assessments Test Your Learning readmore
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Advanced Tools For Study Assess Interact HERON’S FORMULA | Assess
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Light | Assess
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Light | Study
Mind Map Overal Idea Content Speed Notes Quick Coverage Light: It is the natural agent that stimulates sight and makes things visible. Light travels along straight line. Any polished or a shining surface acts as a mirror. An image which can be obtained on a screen is called a real image. (Scroll down till end readmore
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Light: It is the natural agent that stimulates sight and makes things visible.
Light travels along straight line.
Any polished or a shining surface acts as a mirror.
An image which can be obtained on a screen is called a real image. (Scroll down till end of the page)
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It is formed by light rays that actually pass through the screen.
An image which cannot be obtained on a screen is called a virtual image.
It is formed by light rays that seem to pass through the screen.
The image formed by a plane mirror is erect.
It is virtual and is of the same size as the object.
The image is at the same distance behind the mirror as the object is in front of it.
In an image formed by a mirror, the left side of the object is seen on the right side in the image, and right side of the object appears to be on the left side in the image.
A concave mirror can form a real and inverted image.
When the object is placed very close to the mirror, the image formed is virtual, erect and magnified.
A Convex mirror is the mirror that curves out; the reflecting surface is convex.
Image formed is virtual, upright and diminished. Image formed by a convex mirror is erect, virtual and smaller in size than the object.
A Concave lens is the lens that is thinner at the center than at the edges.
It is a diverging lens.
Image formed is virtual, erect and diminished.
A convex lens can form real and inverted image.
When the object is placed very close to the lens, the image formed is virtual, erect and magnified.
When used to see objects magnified, the convex lens is called a magnifying glass.
White light is composed of seven colors.
Properties of Light:
1. Rectilinear Propagation of Light: It is the property of light by which it travels in a straight line in any direction.
The direction of path in which light make a ray.
2. Reflection of Light: It is the bouncing back of light after striking the surface of an object.
Shiny smooth surfaces reflect almost all the light.
3. Dispersion: It is the phenomenon of splitting of white light into its seven colors. White
light is mixture of: Violet, Indigo, Blue, Green, Yellow, Orange and Red (VIBGYOR) colors.
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Living Creatures: Exploring their Characteristics | Study
Mind Map Overal Idea Content Speed Notes Quick Coverage Content : (Scroll down till end of the page) Study Tools Audio, Visual & Digital Content Content … Key Terms Topic Terminology Term Important Tables Table: . Assessments Test Your Learning readmore
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Advanced Tools For Study Assess Interact Playing with Constructions | Assess
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