What is electric discharge?

Important Questions on Some Natural Phenomena

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Try out>Q 5

What is a lightning conductor?

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Try out>Q 1

The spot on the Earth's surface lying just above the focus of earthquake is known as the epicentre.

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Try out>Q 2

The average thickness of a tectonic plate is usually between 50-200 km.

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Try out>Q 3

When a reverse earthquake occurs under a sea, it causes a cyclone. 

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Try out>Q 4

An earthquake of magnitude between 5 and 6 is considered moderate.

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Try out>Q 5

If we are indoors at the time of an earthquake, we should take cover under a table or cot.

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Exercise>Q 1

Lightning occurs on a _____ day.

EASY

8th CBSE

IMPORTANT

Focus Science in Everyday Life>Chapter 16 - Some Natural Phenomena>Exercise>Q 2

An ebonite rod rubbed with flannel acquires _____ charge (s).