Science: EXAM SOLUTION

All the pts and mid-terms solution

In case of a moving body

displacement => distance

The odometer of a car measures

Distance

Chalk powder in water is an example of:

Suspension

The ability of a substance to flow or move about freely is:

fluidity

Which cell organelle is also called suicide bag?

lysosomes

ATP stands for

Adenosine triphosphate

Evaporation causes

Cooling

Immiscible liquids are separated by using a

separating funnel

Distance is which quantity

scalar quantity

Lipids and proteins constituting the cell membrane get synthesized in the

the endoplasmic reticulum

Where are proteins synthesized in the cell

Ribosomes

Atomic number of Neon is

10

At equator, the value of acceleration due to gravity is comparatively

Less

Growing two or more crops in a definite row and pattern is known as:

Inter cropping

SI unit of power is

Watt

Combining capacity of an element is known as its:

Valency

Protons and neutrons together are called

nucleons

Protium, deuterium and tritium are what of hydrogen

isotopes

Objects of density less than that is liquid float or sink on the liquid?

Float

Capacity to do work is called

energy

Bee keeping is done to get

honey and wax

Mass is the measure of

Inertia

Milk in water is an example of

colloidal solution

Which cell organelle is also called the powerhouse of the cell

Mitochondria

Name the tissue responsible for the movement of our body

muscular tissue

what is an example of heterogeneous mixture?

soil

Rusting of almirah is what change

chemical change

H2S molecule has what atoms of hydrogen

2 atoms of hydrogen

SI unit of momentum is

kg⋅m/s

Which tissue makes up the husk of coconut

Sclerenchyma tissues

Which of the following is not a property of gas?

* Gases have a definite shape
* Gases have no definite volume
* Gases are not compressible
* Gaseous particles are in a state of random motion

Gases are not compressible, gases have a definite shape

A goalkeeper in a football game pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to

* Increase the rate of change of momentum
* Decrease the rate of change of momentum
* Increase the force exerted by the balls on the hands
* exert a larger force on the ball

decreases the rate of change of momentum

What is the chemical formula of sodium carbonate?

Na₂CO₃

The mass number of the element is

the sum of number of protons and neutrons present in the nucleus of an atom.

Which factor does the acceleration due to gravity on the Earth depend upon?

mass of the earth

What are the various factors affecting kinetic energy?

* mass
* momentum'
* kinetic energy

Mexican wave in a stadium is an example of

transverse wave