CBSE CLASS 10 - Science - Chapter 14 - Sources Of Energy (Revision Assignment) (#cbseNotes)(#eduvictors)

SOURCE OF ENERGY

Revision Assignment

Energy Sources and Potential
(Image Credits: Wikipedia, Delphi234

ONE MARKS QUESTION

1. Thermal power plants are set up near coal or oil fields. Give reason

2. Name the component of sunlight, exposure to which may cause skin cancer.

3. Flowing water possess which type of energy.

4. Name one place in India where wind energy power station is installed.

5. What is a solar panel?

6. What type of energy transformation takes place during winding of spring of a clock?

7. Name the process that produces a large amount of energy in the sun.

8. Why is biogas called a clean fuel?

9. Name the materials used for making solar cells.

CBSE Class 9 - English (Communication) - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 9 - English (Communication) -
Sample Question Paper - (2017-18)

CBSE Class 9 - Biology - Why Do We Fall ill? (Q and A) (#cbseNotes) (#eduvictors)

Why Do We Fall ill? (Short Q and A)

Q1: Define Health according to WHO?

Answer: According to WHO (World Health Organisation) health is a “state of physical, metal and social well-being of a person”.



Q2: When is WORLD HEALTH DAY celebrated?

Answer: On 7th April



Q3: Define Disease.

Answer: Any disturbance in the structure or function of any organ or part of body.



Q4: List any two conditions necessary for good health.

Answer:
(i) Good physical and social environment.
(ii) Good economic conditions.

CBSE Class 12 - Final Examination Date Sheet - (2017-18) (#eduvictors)(#cbsenotes)

CBSE Class 12 - Final Examination Date Sheet - (2017-18)

CBSE Class 10 - Final Examination Date Sheet - (2017-18) (#cbsenotes)(#eduvictors)

CBSE Class 10 - Final Examination Date Sheet - (2017-18)

CBSE Class 6 - Sanskrit (संस्कृत) - Sample Question Paper - (2017-18) (#cbsepapers)(#eduvictors)

CBSE Class 6 - Sanskrit (संस्कृत) -
Sample Question Paper - (2017-18)

CLASS 10 - Biology - Heredity and Evolution – Unit Test Paper (#cbsePapers)(#eduvictors)

Heredity and Evolution

Unit Test Paper

Q1: Define the following:
a) Inheritance
b) Heredity
c) Phenotype
d) Genotype

Q2: How does the creation of variation in a species promote survival?


Q3: Give scientific reasons:

i. In sexual mode of reproduction greater diversities are generated.

ii. Phenotypic and genotypic ratios are different.

iii. A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants


Q4: How do genes regulate the height of a plant ?

CBSE Class 12 - Informatics Practices - Sample Question Paper - (2017-18) (#cbsepapers)(#eduvictors)

CBSE Class 12 - Informatics Practices -
Sample Question Paper - (2017-18)

CBSE Class 10 - Physics - The Human Eye and the Colourful World – Unit Test Paper (#eduvictors)(#cbsepapers)

The Human Eye and the Colourful World – Unit Test Paper

Q1: A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power which type?

Q2: Give reasons for the following:
i. Stars twinkle at night.
ii. The sun appears reddish early in morning.
iii. Planets do not twinkle.
iv. Red colour is used in danger signals.

Q3: A person walking in desert gets a illusion of seeing water. Name the phenomenon of light responsible for it.

Q4: Distinguish between Refraction and Dispersion.

CBSE CLASS 10 - Physics - Refraction From Lens - Worksheet (#cbseNotes)(#eduvictors)

Physics - Refraction From Lens

Q1: In refraction of light, what does Snell's Law state?

Answer: The ratio of sine of angle of incidence to the sine of angle of refraction remains constant subject to certain conditions. This is called refraction.


Q2: Which of the following property of light wave changes when it travels from one medium to another (having different optical densities)?

a. Wavelength
b. Speed of Light
c. Frequency