Advertisements
Advertisements
Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi?
Concept: undefined >> undefined
Choose one or more correct alternatives.
For work to be performed, energy must be ______.
- transferred from one place to another
- concentrated
- transformed from one type to another
- destroyed
Concept: undefined >> undefined
Advertisements
Choose one or more correct alternatives.
Joule is the unit of ______.
- force
- work
- power
- energy
Concept: undefined >> undefined
The work done on an object does not depend on ______.
Concept: undefined >> undefined
State the difference.
Cation and anion
Concept: undefined >> undefined
Explain by drawing a figure of the electronic configuration.
Formation of sodium chloride from sodium and chlorine.
Concept: undefined >> undefined
Explain by drawing a figure of the electronic configuration.
Formation of magnesium chloride from magnesium and chlorine.
Concept: undefined >> undefined
Give examples of the importance of climate in the living world with explanations, in your own words.
Concept: undefined >> undefined
Which technical difficulties did you face while using the computer? What did you do to overcome them?
Concept: undefined >> undefined
Explain the differences between the different generations of computers. How did science contribute to these developments?
Concept: undefined >> undefined
Fill in the blank to complete the statement. Justify the statement.
A computer will not work unless ______ is supplied to it.
Concept: undefined >> undefined
Explain in your own words with suitable examples.
Describe the transportation system in plants.
Concept: undefined >> undefined
Why can an X-ray telescope not be based on the earth?
Concept: undefined >> undefined
The wavelength of visible light is between ______ and ______.
Concept: undefined >> undefined
Match the pairs.
| Group A | Group B |
| 1. Saturated brine | a. sodium metal freed |
| 2. Fused salt | b. basic salt |
| 3. CaOCl2 | c. crystallization of salt |
|
4. NaHCO3 |
d. oxidation of colour |
Concept: undefined >> undefined
Fill in the blank and explain.
Sound does not travel through ______.
Concept: undefined >> undefined
Explain the properties of carbon.
Concept: undefined >> undefined
Classify carbon.
Concept: undefined >> undefined
Explain the difference between a plane mirror, a concave mirror, and a convex mirror with respect to the type and size of the images produced.
Concept: undefined >> undefined
Write proper word from the following group of words in the blank.
(magnetism, 4.5V, 3.0V, gravitational attraction, potential difference, potential, higher, lower, 0V)
Water in the waterfall flows from a higher level to the lower level because of ______.
Concept: undefined >> undefined
