Geetha Iyer Solutions for Exercise 1: Chapters 10–14

Author:Geetha Iyer

Geetha Iyer Science Solutions for Exercise - Geetha Iyer Solutions for Exercise 1: Chapters 10–14

Attempt the practice questions from Exercise 1: Chapters 10–14 with hints and solutions to strengthen your understanding. Science Now 8 solutions are prepared by Experienced Embibe Experts.

Questions from Geetha Iyer Solutions for Exercise 1: Chapters 10–14 with Hints & Solutions

MEDIUM
8th CBSE
IMPORTANT

When salt is added to pure water it reduces the conductivity of water.

MEDIUM
8th CBSE
IMPORTANT

Two glass rods separately rubbed with a piece of silk cloth attract each other.

MEDIUM
8th CBSE
IMPORTANT

It is not safe to carry an umbrella during a thunderstorm.

MEDIUM
8th CBSE
IMPORTANT

If two forces acting on an object are equal but not acting opposite too each other, then the forces are _____. (balanced forces/unbalanced forces)

MEDIUM
8th CBSE
IMPORTANT

The term used for the perception of the frequency of sound is _____. (pitch/loudness)

MEDIUM
8th CBSE
IMPORTANT

The process of coating a layer of metal on another metal using electrolysis is called _____. (electroplating/electrorefining)

MEDIUM
8th CBSE
IMPORTANT

The energy released during earthquakes is expressed in _____. (Richter scale/Plank scale)

MEDIUM
8th CBSE
IMPORTANT

Match the following:

Column A Column B
(a) Lubricants (1) Increases with depth
(b) Liquid pressure (2) Reduce the friction
(c) Loudness of sound (3) Produced by bats
(d) Ultrasonic sound (4) Insulator of electricity
(e) Pure water (5) Increases with its intensity