Recent questions in Class 7

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

Which of the following does not use convex lens ?

asked Nov 8, 2017 by priyanka.c

1 answer

What does a magnifying glass comprise of ?

asked Nov 8, 2017 by priyanka.c

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Which of the following is dynamic electricity ?

asked Nov 8, 2017 by priyanka.c

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The lenses which are thicker in the middle than at the edges are called as _______

asked Nov 8, 2017 by priyanka.c

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What is the instrument used to measure electric current called?

asked Nov 8, 2017 by priyanka.c

1 answer

The strength of an electro magnet depends upon the _______.

asked Nov 8, 2017 by priyanka.c

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Weather radar provides information about _______

asked Nov 8, 2017 by priyanka.c

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What are the factors that affect the weather?

asked Nov 8, 2017 by priyanka.c

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Why is it that the gases near the surface of the earth is denser than at high altitude?

asked Nov 8, 2017 by priyanka.c

1 answer

Which of the following is faster?

asked Nov 8, 2017 by priyanka.c

1 answer

Which periodic event would you use to measure a year ?

asked Nov 8, 2017 by priyanka.c

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Which of the following is a scalar quantity ?

asked Nov 8, 2017 by priyanka.c

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Why are cotton clothes preferred during summer ?

asked Nov 8, 2017 by priyanka.c

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Heat transfer through the process of conduction occurs when

asked Nov 8, 2017 by priyanka.c

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What is the maximum temperature that water can reach ?

asked Nov 8, 2017 by priyanka.c

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If a ray of light is incident at an angle of $50^{\circ}$, what would be it's angle of reflection ?

asked Nov 8, 2017 by priyanka.c

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Lateral inversion is due to ________.

asked Nov 8, 2017 by priyanka.c

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For an electric circuit to work, the electricity has to be ________.

asked Nov 8, 2017 by priyanka.c

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Why don't we see sunlight in VIBGYOR ?

asked Nov 8, 2017 by priyanka.c

1 answer

What is the element used to make or break an electric circuit ?

asked Nov 8, 2017 by priyanka.c

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In an electric circuit, the electric bulb creates light by using _______ to heat up the filament.

asked Nov 8, 2017 by priyanka.c

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What maintains the equilibrium in the atmosphere ?

asked Nov 8, 2017 by priyanka.c

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Monsoon winds are the result of temperature difference created due to ________.

asked Nov 8, 2017 by priyanka.c

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What protects us from the sun's ultraviolet rays?

asked Nov 8, 2017 by priyanka.c

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If the speed of an object moving along a straight path keeps changing, then it's said to have ________ motion.

asked Nov 8, 2017 by priyanka.c

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Which periodic event can be related to measuring a day?

asked Nov 8, 2017 by priyanka.c

1 answer

Manoj walks at an average speed of 4 km/hr. How long will it take for him to reach a distance of 1 mile ?

asked Nov 8, 2017 by priyanka.c

1 answer

Temperature is measured in the units of

asked Nov 8, 2017 by priyanka.c

1 answer

The boiling point of water can be measured using a

asked Nov 8, 2017 by priyanka.c

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The transfer of heat from hotter part to colder part of a body without any actual movement of molecule is termed as ______.

asked Nov 8, 2017 by priyanka.c

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If the angle of reflection of a plane mirror is $35^{\circ}$, at what angle would the ray of light be incident on the surface ?

asked Nov 8, 2017 by priyanka.c

1 answer

What is the difference between a mirror and a lens ?

asked Nov 8, 2017 by priyanka.c

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When does a real image occur ?

asked Nov 8, 2017 by priyanka.c

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In order to prevent accidents, the electric fuse consists of a conducting wire made of _______.

asked Nov 8, 2017 by priyanka.c

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The thick metallic wire used in an electric bulb is made up of ________.

asked Nov 8, 2017 by priyanka.c

1 answer

What happens while ironing clothes ?

asked Nov 8, 2017 by priyanka.c

1 answer

What is the instrument used to measure rainfall?

asked Nov 8, 2017 by priyanka.c

1 answer

How does a hot air balloon moves upward ?

asked Nov 8, 2017 by priyanka.c

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What is moving air called?

asked Nov 8, 2017 by priyanka.c

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What is the type of motion experienced when you pedal a bicycle in motion ?

asked Nov 8, 2017 by priyanka.c

1 answer

Rahul walks 6 km in 2 hrs and rests for 30 minutes. Again he walks in the same direction for another 3 km in 1 hr. What is the average speed Rahul walked in during his entire travel?

asked Nov 8, 2017 by priyanka.c

1 answer

The maximum distance covered by an object at a given time determines the object's _________.

asked Nov 8, 2017 by priyanka.c

1 answer

What happens when objects of different temperature are placed in a surrounding?

asked Nov 8, 2017 by priyanka.c

1 answer

What is the boiling point of water?

asked Nov 8, 2017 by priyanka.c

1 answer

What happens to the molecules when the temperature of the matter increases?

asked Nov 8, 2017 by priyanka.c

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Reflection of light occurs irrespective of _______.

asked Nov 7, 2017 by priyanka.c

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Uniform reflection of light depends upon the ______

asked Nov 7, 2017 by priyanka.c

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The colour of sunlight appears in tinges during dawn and dusk. Why?

asked Nov 7, 2017 by priyanka.c

1 answer

The direction of force experienced by a conductor depends upon the _______.

asked Nov 7, 2017 by priyanka.c

1 answer

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