I realised I (meet) the man before ( past perfect form of the verb)
1 ( finish) the exercise.( present perfect form of the verb)
Its (expensive) to travel by train than by bus. (write comparative form of adjectives)
My house is ( small) than my friends house.( write comparative form of adjectives)
John is the (tall) in the class. (write superlative form of adjectives)
By the end of the party, there was (widely/hardly) any food left.

Topic:

Heat & Thermodynamics

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Question 8

A person rings w etallic bell near a strong concrete wall. He hears the echo after

0.3 s

. If the sound moves with a speed of

340 m / s

. The wall is far from him?

$102 m$
$11 m$
$51 m$
$30 m$

Topic:

Waves & Oscillation

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Question 9

Two blocks of masses

2 kg

and

3 kg

are on a smooth horizontal table in contact with each other. A horizontal force

F = 6 N

is applied as shown. Then the force of contact is

$2.4 N$
$3 N$
$5 N$
$3.6 N$

Topic:

Mechanics

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Question 10

L.0. Classifies the substance and organisms based on their properties, composition and function. Q-1 State whether the contact force or non-contact force is responsible in the following 05

incid

Reshma pushes the table to change its position.
Nimisha rubs two balloons with a paper. While moving one balloon closer to the other balloon, the other balloon gets away from the first balloon.
Anil puts one magnet on the surface of the glass and slowly moves the other magnet closer to the magnet placed on the surface of glass. The magnet placed on the surface of the glass moves backwards.
Nayana lifts a bucket full of water.
A rubber ball falls off the table.

Topic:

Optics

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Question 11

egin{array}{ll} ext { L.0. } & ext { Carries out simple checks to get answers to the questions. } \ ext { Q-2 } & ext { Do as directed. } \ & ext { 1) Why are we able to hear with our ears? }end{array} Lo. 2 Which tricks do you use to reduce pressure in everyday activities? Links process and events to causes. - 20 egin{array}{lr} ext { L.0. } & ext { Links process and events to causes } \ ext { Q-3 } & ext { Give scientific reasons. } \ & ext { 1) We should not take junk } \ & ext { 2) Trees should be planted } \ ext { L.O. } & ext { Explains processes and events. }end{array}

We should not take junk food or packed food as a reguntes both sides of the road. 2) Trees should be planted on bote

Topic:

Optics

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Question 12

Q-4 Answer the following questions.

A truck that is stopped on the road has to be pushed hard to get into motion. 02 When the truck is moving a little, it can be moved faster with a smaller /less push. Why?
The shape of an aeroplane is not kept the same as the shape of the bus. Why? 03

Topic:

Optics

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Question 13

L.0. Applies learnt scientific concepts in everyday life. Q-5 Answer the following questions.

As a football player, you would choose to wear a flat bottom shoes or shoes 03 with nails to play on the fields. Why?
Should girls cook during menstrual days or not? Why?

Topic:

Optics

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Question 14

Question 1. What is the foroe between two small charged spheres having charges of