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![Samacheer Kalvi solutions for Science - Term 1 [English] Class 7 TN Board chapter 1 - Measurement - Shaalaa.com](/images/science-term-1-english-class-7-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science - Term 1 [English] Class 7 TN Board chapter 1 - Measurement")
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Solutions for Chapter 1: Measurement
Below listed, you can find solutions for Chapter 1 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science - Term 1 [English] Class 7 TN Board.
Samacheer Kalvi solutions for Science - Term 1 [English] Class 7 TN Board 1 Measurement Evaluation [Pages 10 - 12]
Choose the best answer.
Which of the following is a derived quantity?
mass
time
area
length
Which of the following is correct?
1L = 1cc
1L = 10 cc
1L = 100 cc
1L = 1000cc
SI unit of density is ______.
kg/m2
kg/m3
kg/m
g/m3
Two spheres have mass and volume in the ratio 2:1. The ratio of their density is ______.
1:2
2:1
4:1
1:4
Light year is the unit of ______.
distance
time
density
Both length and time
Fill in the blanks
Volume of irregularly shaped objects are measured using the law of ______.
One cubic metre is equal to ______ cubic centimetre.
Density of mercury is ______.
One astronomical unit is equal to ______.
The area of a leaf can be measured using a ______.
State true or false. If false, correct the statement.
The region covered by the boundary of a plane figure is called its volume.
True
False
State true or false. If false, correct the statement.
The region covered by the boundary of a plane figure is called its volume.
True
False
State true or false. If false, correct the statement.
Water is denser than kerosene.
True
False
State true or false. If false, correct the statement.
A ball of iron floats in mercury.
True
False
State true or false. If false, correct the statement.
A substance which contains less number of molecules per unit volume is said to be denser.
True
False
Match the following items.
| Column 1 | Column 2 | ||
| 1. | Area | a. | light year |
| 2. | Distance | b. | m3 |
| 3. | Density | c. | m2 |
| 4. | Volume | d. | kg |
| 5. | Mass | e. | kg/m3 |
Match the following items.
| Column 1 | Column 2 | ||
| 1. | Area | a. | g/cm3 |
| 2. | Length | b. | measuring jar |
| 3. | Density | c. | amount of a substance |
| 4. | Volume | d. | rope |
| 5. | Mass | e. | plane figures |
Arrange the following in correct sequence.
1L, 100 cc, 10 L, 10 cc
Arrange the following in correct sequence.
Copper, Aluminium, Gold, Iron
Use the analogy to fill in the blank
Area : m2 :: Volume : ______
Use the analogy to fill in the blank
Liquid : Litre :: Solid : ______.
Use the analogy to fill in the blank
Water: Kerosene:: _______ : Aluminium
Consider the following statements and choose the correct option.
Assertion: Volume of a stone is found using a measuring cylinder.
Reason: Stone is an irregularly shaped object.
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true, but reason is not the correct explanation of assertion.
Assertion is true but reason is false.
Assertion is false but reason is true.
Assertion: Wood floats in water.
Reason: Water is a transparent liquid.
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true, but reason is not the correct explanation of assertion.
Assertion is true but reason is false.
Assertion is false but reason is true.
Assertion: Iron ball sinks in water.
Reason: Water is denser than iron.
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true, but reason is not the correct explanation of assertion.
Assertion is true but reason is false.
Assertion is false but reason is true.
Answer very briefly.
Name some of the derived quantities.
Give the value of one light year.
Write down the formula used to find the volume of a cylinder.
Give the formula to find the density of objects.
Name the liquid in which iron ball sinks.
Name the units used to measure the distance between celestial objects.
What is the density of gold?
Answer briefly.
What are derived quantities?
Distinguish between the volume of liquid and capacity of a container.
Define the density of objects.
What is one light year?
Define - Astronomical unit.
Answer in details.
Describe the graphical method to find the area of an irregularly shaped plane figure.
How will you determine the density of a stone using a measuring jar?
Questions based on Higher Order Thinking Skills:
|
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
|
Now answer the following questions:
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.
Numerical problems
A circular disc has a radius 10 cm. Find the area of the disc in m2 (Use π = 3.14).
The dimension of a school playground is 800 m × 500 m. Find the area of the ground.
Two spheres of same size are made from copper and iron respectively. Find the ratio between their masses (Density of copper is 8,900 kg/m and iron is 7,800 kg/m3 ).
A liquid having a mass of 250 g fills a space of 1000 cc. Find the density of the liquid.
A sphere of radius 1cm is made from silver. If the mass of the sphere is 33g, find the density of silver (Take π = 3.14).
Cross word puzzle.
Clues – Across
- SI unit of temperature;
- A derived quantity;
- Mass per unit volume;
- Maximum volume of liquid a container can hold
Clues – Down
- A derived quantity
- SI unit of volume
- A liquid denser than iron
- A unit of length used to measure very long distances
Solutions for 1: Measurement
Samacheer Kalvi solutions for Science - Term 1 [English] Class 7 TN Board chapter 1 - Measurement
Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Science - Term 1 [English] Class 7 TN Board Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Samacheer Kalvi solutions for Mathematics Science - Term 1 [English] Class 7 TN Board Tamil Nadu Board of Secondary Education 1 (Measurement) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Science - Term 1 [English] Class 7 TN Board chapter 1 Measurement are Measurements, Physical Quantities, Area and It’s Unit, Measurement of Area, Volume and It’s Unit, Vessels for Measuring the Volume, Measurement of Volume, Density and It’s Unit, Measuring Larger Distances, Density of a Substance in Its Different States.
Using Samacheer Kalvi Science - Term 1 [English] Class 7 TN Board solutions Measurement exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Science - Term 1 [English] Class 7 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
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