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2: Motion
3: Energy
4: Light Energy
5: Heat
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7: Electricity and Magnetism
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Solutions for Chapter 1: Physical Quantities and Measurement
Below listed, you can find solutions for Chapter 1 of CISCE Selina for Concise Physics [English] Class 7 ICSE.
Selina solutions for Concise Physics [English] Class 7 ICSE 1 Physical Quantities and Measurement Objective Questions
Write true or false for a given statement
The S.I. unit of volume is the liter.
True
False
Write true or false for a given statement
A measuring beaker of capacity 200 ml can measure only the volume. 200 ml of a liquid.
True
False
Write true or false for a given statement
cm2 is a smaller unit of area than m2.
True
False
Write true or false for a given statement
Equal volumes of two different substances have equal masses.
True
False
Write true or false for a given statement
The S.I. unit of density is g cm-3.
True
False
Write true or false for a given statement
1 g cm-3 = 1000 kg m-3.
True
False
Write true or false for a given statement.
The density of water is maximum at 4°C.
True
False
Write true or false for a given statement.
The speed 5 ms-1 is less than 25 km h-1.
True
False
Write true or false for a given statement.
The S.I. unit of speed is ms-1.
True
False
Fill in the blank
l m3 =..........cm3
Fill in the blank
The volume of an irregular solid is determined by the method of _____
Fill in the blank
Volume of a cube = _________
The area of an irregular lamina is measured by using a ____________.
Fill in the blank
Mass = density × _______
Fill in the blank
The S.I. unit of density is _______
Fill in the blank
1 g cm-3 = _______ kg m-3.
Fill in the blank
36 km h-1 = _______ ms-1.
Fill in the blank
Distance travelled d = ________ × time t
Match the following:
| Column A | Column B |
| 1.Volume of a liquid | 1. kg `m^-3` |
| 2. Area of a leaf | 2. `m^3` |
| 3. S.I. unit of volume | 3. graph paper |
| 4. S.I. unit of density | 4. m `s^-1` |
| 5. S.I.unit of speed | 5. measuring cylinder |
Select the correct alternative
One litre is equal to :
1 cm-3
1 m3
10-3 cm3
10-3 m3
Select the correct alternative
A metallic piece displaces water of volume 15 ml. The volume of piece is :
15 cm3
15 m 3
15 × 103 cm3
15 × 103 cm
A piece of paper of dimensions 1.5 m × 20 cm has area ______.
30 m2
300 cm2
0.3 m2
3000 m3
Select the correct alternative
The correct relation is :
d = M × V
M = d × V
V = d × M
d = M + V
Select the correct alternative
The density of alcohol is 0.8 g cm-3. In S.I. unit, it will be :
0.8 kg m-3
0.0008 kg m-3
800 kg m-3
8 x 103 kg m-3
Select the correct alternative
The density of aluminium is 2.7 g cm-3 and of brass is 8.4 g cm-3. For the same mass, the volume of:
both will be same
aluminium will be less than that of brass
aluminium will be more than that of brass
nothing can be said.
Select the correct alternative
A block of wood of density 0.8 g cm-3 has a volume of 60 cm3. The mass of block will be :
60.8 g
75 g
48 g
0.013
Select the correct alternative
The correct relation for speed is
Speed = distance x time
speed = distance / time
speed = time / distance
speed = 1 / distance x time
Select the correct alternative
A boy travels a distance 150 m in 1 minute. His speed is
150 m s-1
2.5 m s-1
25 m s-1
9 m s-1
Selina solutions for Concise Physics [English] Class 7 ICSE 1 Physical Quantities and Measurement Short/Long Answer Questions
Define the term volume of an object.
State and define the S.I. unit of volume.
State two smaller units of volume. How are they related to the S.I. unit?
How will you determine the volume of a cuboid ? Write the formula you will use.
Name two devices which are used to measure the volume of an object. Draw their neat diagrams.
How can you determine the volume of an irregular solid (say a piece of brass) ? Describe in steps with neat diagrams.
You are required to take out 200 ml of milk from a bucket full of milk. How will you do it?
Describe the method in steps to find the area of an irregular lamina using a graph paper.
Define the term density of a substance.
State the S.I. and C.G.S. units of density. How are they inte related ?
‘The density of brass is 8.4 g cm’3’. What do you mean by the statement ?
Arrange the following substances in order of their increasing density:
(a) iron
(b) cork
(c) brass
(d) water
(e) mercury
How does the density of water changes when it is heated from 0°C to 4°C,
How does the density of water changes when it is heated from 4°C to 10°C ?
Write the density of water at 4°C.
Explain the meaning of the term speed.
Write the S.I. unit of speed.
A car travels with a speed 12 m s”1, while a scooter travels with a speed 36 km h-1. Which of the two travels faster ?
Selina solutions for Concise Physics [English] Class 7 ICSE 1 Physical Quantities and Measurement Numericals
The length, breadth and height of a water tank are 5 m, 2.5 m and 1.25 m respectively. Calculate the capacity of the water tank in (a) m3 (b) litre.
A solid silver piece is immersed in water contained in a measuring cylinder. The level of water rises from 50 ml to 62 ml. Find the volume of silver piece.
Find the volume of a liquid present in a dish of dimensions 10 cm x 10 cm x 5 cm.
A rectangular field is of length 60 m and breadth 35 m. Find the area of the field.
Find the approximate area of an irregular lamina of which boundary line is drawn on the graph paper shown in following figure.
A piece of brass of volume 30 cm3 has a mass of 252 g. Find the density of brass in (i) g cm-3, (ii) kg m-3.
The mass of an iron ball is 312 g. The density of iron is 7.8 g cm-3. Find the volume of the ball.
A cork has a volume 25 cm3. The density of cork is 0.25 g cm-3. Find the mass of cork.
The mass of 5 litre of water is 5 kg. Find the density of water in g cm-3.
A cubical tank of side 1 m is filled with 800 kg of a liquid. Find:
(i) the volume of tank,
(ii) the density of liquid in kg m-3.
A block of iron has dimensions 2 m × 0.5 m × 0.25 m. The density of iron is 7.8 g cm−3. Find the mass of block.
The mass of a lead piece is 115 g. When it is immersed into a measuring cylinder, the water level rises from 20 ml mark to 30 ml mark.
Find the volume of the lead piece.
The mass of a lead piece is 115 g. When it is immersed into a measuring cylinder, the water level rises from 20 ml mark to 30 ml mark ,
Find the density of the lead in kg m-3.
The density of copper is 8.9 g cm-3. What will be its density in kg m-3 ?
A car travels a distance of 15 km in 20 minute. Find the speed of the car in km h-1.
A car travels a distance of 15 km in 20 minute. Find the speed of the car in m s-1.
How long a train will take to travel a distance of 200 km with a speed of 60 km h-1 ?
A boy travels with a speed of 10 m s-1 for 30 minute. How much distance does he travel ?
Express 36 km h-1 in m s-1
Express 15 m s-1 in km h-1.
Solutions for 1: Physical Quantities and Measurement
Selina solutions for Concise Physics [English] Class 7 ICSE chapter 1 - Physical Quantities and Measurement
Shaalaa.com has the CISCE Mathematics Concise Physics [English] Class 7 ICSE CISCE 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. Selina solutions for Mathematics Concise Physics [English] Class 7 ICSE CISCE 1 (Physical Quantities and 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 Concise Physics [English] Class 7 ICSE chapter 1 Physical Quantities and Measurement are Physical Quantities, Determination of Density of a Regular Solid, Determination of Density of an Irregular Solid, Determination of Density of a Liquid, Measurement of Density, Measurements, Measurement of Volume, Volume and It’s Unit, Area and It’s Unit, Measurement of Area, Density and It’s Unit, Speed.
Using Selina Concise Physics [English] Class 7 ICSE solutions Physical Quantities and 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 Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Concise Physics [English] Class 7 ICSE students prefer Selina Textbook Solutions to score more in exams.
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