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Recent questions tagged class 8

Cations are _______.

asked Nov 10, 2017 by priyanka.c

1 answer

Knowing the fact that earth is round shaped and that we are living on the crust, how is it possible for all of us to balance irrespective of where we live on earth ?

asked Nov 10, 2017 by priyanka.c

1 answer

What is the pressure exerted by a fluid at equilibrium, due to gravity called ?

asked Nov 10, 2017 by priyanka.c

1 answer

Which of the following are also types of forces ?

asked Nov 10, 2017 by priyanka.c

1 answer

What is the nerve cell that is more sensitive to dim light called ?

asked Nov 10, 2017 by priyanka.c

1 answer

When the surface is rough, the rays incident at slightly different points on the surface are reflected __________

asked Nov 10, 2017 by priyanka.c

1 answer

What is the name of the first Indian artificial satellite sent ?

asked Nov 10, 2017 by priyanka.c

1 answer

Why does the moon revolve around the earth instead of revolving around the sun as the planets do ?

asked Nov 10, 2017 by priyanka.c

1 answer

What makes the sun shine ?

asked Nov 10, 2017 by priyanka.c

1 answer

What is the sound frequency that a human ear cannot detect ?

asked Nov 10, 2017 by priyanka.c

1 answer

In which medium does sound travel the fastest ?

asked Nov 10, 2017 by priyanka.c

1 answer

Why are lightning arresters placed at the apex of the structures ?

asked Nov 9, 2017 by priyanka.c

1 answer

What happens when electrons are exchanged through a contact like rubbing ?

asked Nov 9, 2017 by priyanka.c

1 answer

When two surfaces offer high resistance then the fluid friction is known as _________

asked Nov 9, 2017 by priyanka.c

1 answer

Where does a fluid friction occur ?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the friction on a body just before it starts moving called ?

asked Nov 9, 2017 by priyanka.c

1 answer

The nature of chemical bonding between the atoms of a compound decides the creation of ________ in a solution.

asked Nov 9, 2017 by priyanka.c

1 answer

Calculate the pressure exerted by a table whose area is$10m^2$ and the force on the table is a constant force of $100 N.$

asked Nov 9, 2017 by priyanka.c

1 answer

Rahul plays with 5 litre water can by putting holes in it at various levels vertically. Let's name the holes as 1, 2, 3, 4 respectively starting from the mouth of the water can to the bottom line. Now if the can is filled with water, which one hole will exert the water with high pressure ?

asked Nov 9, 2017 by priyanka.c

1 answer

Which of the following are due to force?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the formula used to calculate the number of image formed by multiple reflection ?

asked Nov 9, 2017 by priyanka.c

1 answer

Which kind of vision is supported by the optic nerves called rods?

asked Nov 9, 2017 by priyanka.c

1 answer

Which among the following is not a terrestrial planet ?

asked Nov 9, 2017 by priyanka.c

1 answer

How many planets are there in our solar system ?

asked Nov 9, 2017 by priyanka.c

1 answer

Which gas is converted in the cores of stars while giving out energy?

asked Nov 9, 2017 by priyanka.c

1 answer

What is pitch of the sound ?

asked Nov 9, 2017 by priyanka.c

1 answer

Why is sound not audible in vacuum medium ?

asked Nov 9, 2017 by priyanka.c

1 answer

Which of the following is the cause for earthquake ?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the device that is used to measure the magnitude of the force acting on an object called?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the force that refrains one solid surface from sliding across another solid surface called ?

asked Nov 9, 2017 by priyanka.c

1 answer

In the process of electrolysis, what does reduction mean?

asked Nov 9, 2017 by priyanka.c

1 answer

In the process of electrolysis of water, what happens at the anode ?

asked Nov 9, 2017 by priyanka.c

1 answer

What are the materials that do not allow the flow of electricity through them called ?

asked Nov 9, 2017 by priyanka.c

1 answer

In a closed container, fluid pressure is caused by _______.

asked Nov 9, 2017 by priyanka.c

1 answer

The air pressure is at it's highest at _______.

asked Nov 9, 2017 by priyanka.c

1 answer

According to the law of reflection, the incident ray, the reflected ray and the point of reflection all lie _______.

asked Nov 9, 2017 by priyanka.c

1 answer

Which optic nerve cell is sensitive to bright light ?

asked Nov 9, 2017 by priyanka.c

1 answer

In multiple reflection, if the angle between the mirror is decreased then the number of images formed is ________.

asked Nov 9, 2017 by priyanka.c

1 answer

Whether stars produce their own light ?

asked Nov 9, 2017 by priyanka.c

1 answer

Which of the following is not a celestial body?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the maximum amplitude of sound a human can hear ?

asked Nov 9, 2017 by priyanka.c

1 answer

What differentiates the voice of men, women and children ?

asked Nov 9, 2017 by priyanka.c

1 answer

What happens when the number of protons in an atom equals the number of electrons in it?

asked Nov 9, 2017 by priyanka.c

1 answer

How does a ship float on water?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the friction that exists between a stationary object and the surface on which it's resting called?

asked Nov 9, 2017 by priyanka.c

1 answer

How do metals conduct electricity ?

asked Nov 9, 2017 by priyanka.c

1 answer

What are electrons made up of ?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the term by which pressure is measured ?

asked Nov 9, 2017 by priyanka.c

1 answer

What is the pressure exerted by the weight of the air in the atmosphere called as?

asked Nov 8, 2017 by priyanka.c

1 answer

Is gravity a force ?

asked Nov 8, 2017 by priyanka.c

1 answer

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