Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 6

HARD

9th CBSE

IMPORTANT

Earn 100

Why is heat energy needed to melt a solid? What is this heat energy called?

Important Questions on Model Test Paper (As Per the Latest Marking Scheme)

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 7

Differentiate between prokaryotic and eukaryotic cells.

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 8

An element $Z$ forms an oxide ${ZO}_{3}$ .

(a) What is the valency of element $Z$ ?

(b) What will the formula of fluoride of $Z$ ?

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 9

What are isotopes? Explain by giving an example.

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 9

Give one similarity and one difference between a pair of isotopes.

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 10

Discuss the conservation of momentum in the following case:
Flying of a jet aeroplane

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 11

Derive the formula:

s = ut + \frac{1}{2} {at}^{2}

, where the symbols have usual meanings.

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 11

Discuss the conservation of momentum in the following case:
A rocket taking off from a ground.

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 6 - Model Test Paper (As Per the Latest Marking Scheme)>MODEL TEST PAPER (As per the latest marking scheme)>Q 12

Define the terms 'frequency', 'wavelength' and 'velocity' of a sound wave. What is the relation between them?