Science and Technology 1 2014-2015 SSC (English Medium) 10th Standard Board Exam Question Paper Solution

Advertisement
Science and Technology 1
Marks: 40 Academic Year: 2014-2015
Date: March 2015
Advertisement

[10] 1
[5] 1.1
[2] 1.1.1 | Rewrite the following statements with suitable words in the blanks:
[1] 1.1.1.1

The device used for producing electric current is called _________.

Concept: Electromagnetic Induction
Chapter: [0.04] Effects of Electric Current [0.15] All about Electromagnetism
[1] 1.1.1.2

_________ the second layer of the atmosphere reaches 48 km above the Earth’s surface.

Concept: Effects of Air Pollution
Chapter: [0.18] Striving for better Environment 1
[2] 1.1.2
  Column A   Column B
i eosin 1 losing hydrogen
ii oxidation 2 synthetic indicator
    3 losing oxygen
    4 natural indicator

 

Concept: Properties of Acids
Chapter: [0.13] The Acid Base Chemistry
[1] 1.1.3

Give the molecular formula of bleaching powder.

Concept: Important Salts in Daily Life - Preparation and Uses of Bleaching Powder
Chapter: [0.13] The Acid Base Chemistry
[5] 1.2 | Rewrite the following statements by selecting the correct options :
[1] 1.2.1

When phenolphthalein is added to NaOH, the colour of the solution will become _________.

  1. colourless
  2. red
  3. pink
  4. yellow
Concept: Properties of Acids
Chapter: [0.13] The Acid Base Chemistry
[1] 1.2.2

If the potential difference across the ends of a conductor is 220 V and the resistance of the conductor is 44 Ω (ohm), then the current flowing through is _________.

  1. 0.2 A
  2. 0.5 A
  3. 2 A
  4. 5 A
Concept: Ohm's Law (V = IR)
Chapter: [0.04] Effects of Electric Current [0.14] The Electric Spark
[1] 1.2.3

1 A = _________ mA

  1. 102
  2. 103
  3. 10-3
  4. 10-6
Concept: Electric Current
Chapter: [0.14] The Electric Spark
[1] 1.2.4

The distance between principal focus and optical centre of the lens is _________.

  1. diameter
  2. focal length
  3. principal axis
  4. optical centre
Concept: Images Formed by Sperical Lenses
Chapter: [0.07] Lenses [0.16] Wonders of Light 1
Advertisement
[1] 1.2.5

When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.

  1. perpendicular
  2. parallel
  3. opposite
  4. concurrent
Concept: Refraction of Light Through a Rectangular Glass Slab
Chapter: [0.06] Refraction of Light [0.17] Wonders of Light 2 [0.17] Wonders of Light 2
[10] 2 | Solve any five of the following:
[2] 2.1

Give scientific reason : Danger signals are red in colour.

Concept: Some Natural Phenomena Due to Sunlight
Chapter: [0.17] Wonders of Light 2
[2] 2.2

Complete the following reaction, balance it and write the name of the products CuO + HCI →_________ + _________

Concept: Types of Chemical Change or Chemical Reaction - Double Displacement Reaction
Chapter: [0.03] Chemical Reactions and Equations [0.12] The Magic of Chemical Reactions
[2] 2.3

State Newlands‘ Law of Octaves.

Concept: Newland's Law of Octaves
Chapter: [0.02] Periodic Classification of Elements [0.11] School of Elements
[2] 2.4

The velocity of light in a medium is 1.5 x 108 m/s. What is the refractive index of the medium with respect to air, if the velocity in air is 3 x 108 m/s?

Concept: Refractive Index
Chapter: [0.06] Refraction of Light [0.17] Wonders of Light 2
[2] 2.5

Differentiate between resistances in series and parallel.

Concept: System of Resistors - Resistances in Parallel
Chapter: [0.14] The Electric Spark
[2] 2.6

Draw a ray diagram for concave mirror when the object is between centre of curvature and focus.

Concept: Concave Mirror
Chapter: [0.16] Wonders of Light 1 [0.16] Wonders of Light 1
[15] 3 | Answer any five of the following :
[3] 3.1

Explain the role of citizen in pollution control.

Concept: Abatement of Pollution
Chapter: [0.18] Striving for better Environment 1
[3] 3.2

What is a spectrum?

Concept: Refraction of Light Through a Rectangular Glass Slab
Chapter: [0.06] Refraction of Light [0.17] Wonders of Light 2 [0.17] Wonders of Light 2

Why do we get a spectrum of seven colors when white light is dispersed by a prism?

Concept: Refraction of Light Through a Rectangular Glass Slab
Chapter: [0.06] Refraction of Light [0.17] Wonders of Light 2 [0.17] Wonders of Light 2
[3] 3.3

State four most common electrical appliances based on heating effect of electric current. Why do we use finely heated platinum wire in surgery?

Concept: Effects of Electric Current - Heating Effect of Electric Current
Chapter: [0.04] Effects of Electric Current [0.14] The Electric Spark
Advertisement
[3] 3.4

Name the product obtained when Plaster of Paris is mixed with water. State the use of the product. Give two uses of POP.

Concept: Important Salts in Daily Life - Preparation and Uses of Plaster of Paris
Chapter: [0.13] The Acid Base Chemistry
[3] 3.5

Classify the following elements into metals, non-metals and metalliods

As, C, Hg, Mg, S, Si

Concept: Periodic Properties
Chapter: [0.02] Periodic Classification of Elements [0.11] School of Elements
[3] 3.6
[1] 3.6.1

Complete the following :-

(a)

Concept: System of Resistors - Resistors in Series
Chapter: [0.14] The Electric Spark
[1] 3.6.2

Complete the following :-

(b)

Concept: System of Resistors - Resistances in Parallel
Chapter: [0.14] The Electric Spark
[1] 3.6.3

Complete the following :-

(c)

Concept: System of Resistors - Resistances in Parallel
Chapter: [0.14] The Electric Spark
[5] 4 | Answer any one of the following :
[5] 4.1 | Often when electricity is used we come across electrical fires caused. Answer the following questions related to the following terms:
[1] 4.1.1

When does short circuiting take place?

Concept: Household Electrical Circuits
Chapter: [0.15] All about Electromagnetism
[1] 4.1.2

What happens to the resistance of the circuit during a short circuit?

Concept: Household Electrical Circuits
Chapter: [0.15] All about Electromagnetism
[1] 4.1.3

What happens to the flow of electric current during a short circuit?

Concept: Household Electrical Circuits
Chapter: [0.15] All about Electromagnetism
[1] 4.1.4

What is overloading?

Concept: Household Electrical Circuits
Chapter: [0.15] All about Electromagnetism
[1] 4.1.5

How can the effects of overloading be avoided?

Concept: Household Electrical Circuits
Chapter: [0.15] All about Electromagnetism
[5] 4.2

In a Std. X class out of 40 students 10 students use spectacles, 2 students have positive power and 8 students have negative power of lenses in their spectacles.

Answer the following questions:

(1) What does the negative power indicate?

(2) What does the positive power indicate?

(3) Generally which type of spectacles do most of the students use?

(4) What defect of eyesight do most of the students suffer from?

(5) Give two possible reasons for the above defect.

Concept: Eye Defect and Its Correction: Myopia Or Near-sightedness
Chapter: [0.07] Lenses [0.16] Wonders of Light 1

Other Solutions



















Request Question Paper

If you dont find a question paper, kindly write to us





      View All Requests

Submit Question Paper

Help us maintain new question papers on Shaalaa.com, so we can continue to help students




only jpg, png and pdf files

Maharashtra State Board previous year question papers 10th Standard Board Exam Science and Technology 1 with solutions 2014 - 2015

     Maharashtra State Board 10th Standard Board Exam question paper solution is key to score more marks in final exams. Students who have used our past year paper solution have significantly improved in speed and boosted their confidence to solve any question in the examination. Our Maharashtra State Board 10th Standard Board Exam question paper 2015 serve as a catalyst to prepare for your Science and Technology 1 board examination.
     Previous year Question paper for Maharashtra State Board 10th Standard Board Exam -2015 is solved by experts. Solved question papers gives you the chance to check yourself after your mock test.
     By referring the question paper Solutions for Science and Technology 1, you can scale your preparation level and work on your weak areas. It will also help the candidates in developing the time-management skills. Practice makes perfect, and there is no better way to practice than to attempt previous year question paper solutions of Maharashtra State Board 10th Standard Board Exam.

How Maharashtra State Board 10th Standard Board Exam Question Paper solutions Help Students ?
• Question paper solutions for Science and Technology 1 will helps students to prepare for exam.
• Question paper with answer will boost students confidence in exam time and also give you an idea About the important questions and topics to be prepared for the board exam.
• For finding solution of question papers no need to refer so multiple sources like textbook or guides.
Advertisement
Share
Notifications



      Forgot password?
Use app×