Grade 9/ICSE/ Physics Test/ Vernier caliper/ Marks 20

Questions no 1.

1. What is least count?(1)

2. Write the name of each part of the Vernier caliper and state it's function. (8)

3. What is the formula to calculate least count?

(1)

4. Solve the following numericals

1.  The diameter of a steel ball is measured using vernier scale.  It has 10 division on the Vernier scale and it calibrated at 1 mm. The zero of the Vernier scale co incide with the 7 mm on main scale. And the 6 division of vernier scale coincide with 19th mm mark on main scale.

A.  Calculate the least count.

B. What is the diameter of the steel ball.  (3)

2. 

The diameter of a cylinder is measured using a Vernier callipers with no zero error. It is found that the zero of the Vernier scale lies between 5.10 cm and 5.15 cm of the main scale. The Vernier scale has 50 divisions equivalent to 2.45 cm. The 24th division of the Vernier scale exactly coincides with one of the main scale divisions. The diameter of the cylinder will be?(3)

3.

The main scale of a vernier callipers is calibrated in mm and 19 divisions of main scale are equal in length to 20 divisions of vernier scale. In measuring the diameter of a cylinder by this instrument, the main scale reads 35 divisions and 4th division of vernier scale coinsides with a main scale division. Find:
(i). Least count
(ii). Radius of cylinder(3)

iii) if it has error of +0.005 mm. Calculate the correct reading 

Grade 7/ ICSE/Physics/ Energy

Subject: Physics

Topic : Energy

Marks: 30

Q1. Fill in the blanks(5)

1.  The energy possess by a body on account of it position is known as ...............

2. When the ball rolls down ............. Energy is converted to ......... Energy.

3. Coal possess .......... Energy.

4.  Electrical energy is converted to light energy in ....…........

Q2. Answer the following (10)

1.  Define  Heat energy

2. What is the unit of energy?

3. What is energy?

4. State the conversion of energy in photosynthesis.

5. Write the law of conservation of energy.

6. Name the energy created by vibration of particles.

7. One example where magnetic energy is used in our day today life.

8. Sam was rubbing comb on his head, and then bought pieces of paper near it.

a. what was his observation? Why?

9. How is nuclear energy produced?

Q3.   Answer in brief

1. Write about conversion  of energy(4)

a. Television

b. Solar cell

c.  Geyser

d. Windmill

2. In Roller coaster,

A. which energy is acquired at the top of the roller coaster

B. At the bottom of roller coaster.(2)

3. In dam how does the conversion of energy takes place.(2)

4. Why do you think energy is important?  (2)

Grade 9 ICSE/ Maths Test/ Expansion/ Marks 30

Grade 9/ Biology/ ICSE/ Cell- A Unit of Life

Biology Test

Marks 20.

Grade 9

Board ICSE

Q1. What is the cell ? what are the characteristics of cell?                                3

Q2. Who gave the cell theory? Write the salient features of cell theory.                                4

Q3. Name the following.                             

a. smallest cell

b. Longest cell 

c. Largest cell.                                             3

Q4. State two advantages of the cell being small.                                                            2

Q5. Distinguish between plant cells and animal cell.                                                               4

Q6. Write the function of

a.  plasma membrane based on chemical present on it.

b.  Cell wall

c. Endoplasmic reticulum

d. Vacuoles.                                                4. 

Grade 7 ICSE/Chemistry

Q1. Choose the Correct alternative

1. A compound is a substance that contains .......

A. only one type of atom

B. two or more chemicals which can be easily separated

C. two or more elements chemically joined together

2. Salt, sugar, chalk, and sand are all

A. elements

B. compounds

C. mixtures

D. solutions

3. To make the specific compound, elements are mixed in a fixed proportion by

A. Mass

B. Weight

C. Volume

D. Density

4. The formation of compounds involve

A. chemical reaction

B. physical reaction

C. evaporation

D. distillation

5.The properties of the compound, as compared to properties of its constituents are

A. same

B. different

C. constant

D. exact

6. Which of these is NOT a compound?

A. Carbon monoxide

B.Chlorine

C. Hydrochloric acid

Q2. Magnesium Sulfate is a compound.

Answer the following questions related to Magnesium Sulfate.

a. Name the elements present in the compound mentioned above. 

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

b. What is a compound?

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Q3. State two differences between elements and compounds.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Q4.  Write the name of the compound that is responsible for Global warming.

______________________________________________________________________________________________________________________________________

Q5. Table salt is made of sodium and Chlorine.

a.  Give the chemical name of the Table salt.

______________________________________________________________________________________________________________________________________

b. Is it an element or a compound.

______________________________________________________________________________________________________________________________________

6. Explain we cannot consume sodium and chlorine but we can consume table salt.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

7. Classify the following substances in to solid, liquids and gases.

Air, water, kerosene, pebbles, basket ball, cheese,  carbon, carbon dioxide.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

8. State 3 properties of each of the following

A. solid

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

B. Liquid

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

C. Gases

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Physics/ Grade 9/ICSE

physics test / 20 marks

Grade 9 Chemistry

https://docs.google.com/document/d/1k_A4s3wMNZ8oLZ2Z0l6vZc3Iwmx7ucclu4jSTucC7gM/edit?usp=drivesdk