Maharashtra Board Solutions for Chapter: Measurement of Physical Quantities, Exercise 4: Observe and discuss

Author:Maharashtra Board

Maharashtra Board Science Solutions for Exercise - Maharashtra Board Solutions for Chapter: Measurement of Physical Quantities, Exercise 4: Observe and discuss

Attempt the practice questions on Chapter 6: Measurement of Physical Quantities, Exercise 4: Observe and discuss with hints and solutions to strengthen your understanding. General Science Standard Seven solutions are prepared by Experienced Embibe Experts.

Questions from Maharashtra Board Solutions for Chapter: Measurement of Physical Quantities, Exercise 4: Observe and discuss with Hints & Solutions

EASY
7th Maharashtra Board
IMPORTANT

Identify the wrong methods of measurement shown in the picture and explain why they are wrong.

Question Image  

HARD
7th Maharashtra Board
IMPORTANT

Match the following: 

Group A  Group B
(1) Velocity (a) litre
(2) Area (b) kilogram
(3) Volume (c) metre/second
(4) Mass (d) kilogram/cubic metre
(5) Density (e) square metre

MEDIUM
7th Maharashtra Board
IMPORTANT

Explain giving examples.
Scalar quantity

HARD
7th Maharashtra Board
IMPORTANT

Explain giving examples.
Vector quantity.

HARD
7th Maharashtra Board
IMPORTANT

Explain, giving examples, the errors that occur while making measurements.

EASY
7th Maharashtra Board
IMPORTANT

Give reasons.
It is not proper to measure quantities by using body parts as units.

MEDIUM
7th Maharashtra Board
IMPORTANT

Give reasons.
It is necessary to get the weights and measures standardized at regular intervals.

MEDIUM
7th Maharashtra Board
IMPORTANT

Explain the need for accurate measurement and the devices to be used for that.