Recent questions tagged t3

Which among the fruits is used as a vegetable?

asked Nov 10, 2017 by meena.p

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

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

When the wind speed increases the air pressure is _______.

asked Nov 6, 2017 by priyanka.c

1 answer

Why is it difficult to ride a bicycle against the direction of wind?

asked Nov 6, 2017 by priyanka.c

1 answer

A new substance is formed during a physical change of a particular substance.

asked Nov 6, 2017 by priyanka.c

1 answer

What is the process of seeping of water into the ground called?

asked Nov 6, 2017 by priyanka.c

2 answers

The amount of heat produced in a wire connected to electric supply is due to ______.

asked Nov 6, 2017 by priyanka.c

1 answer

Why is it that the temperature in the tropical region generally hot?

asked Nov 6, 2017 by priyanka.c

1 answer

The image formed by a concave mirror is ________ than the object itself.

asked Nov 6, 2017 by priyanka.c

1 answer

How will the reflection on a plane mirror be?

asked Nov 6, 2017 by priyanka.c

1 answer

Which travels faster?

asked Nov 6, 2017 by priyanka.c

1 answer

Measurement of distance covered per unit time is _______ .

asked Nov 6, 2017 by priyanka.c

1 answer

The unit of speed can be written as

asked Nov 6, 2017 by priyanka.c

1 answer

What is one nanosecond ?

asked Nov 6, 2017 by priyanka.c

1 answer

The odometer of a car at starting point shows 35280. Ravi rides at a constant speed of 40 km/hr. When Ravi reaches the destination, he finds the odometer reading to be 35400. What is the time taken by Ravi to reach his destination?

asked Nov 6, 2017 by priyanka.c

1 answer

Why does it take long for the sea to heat up when compared to the land?

asked Nov 6, 2017 by priyanka.c

1 answer

Why is mercury used in thermometers?

asked Nov 6, 2017 by priyanka.c

1 answer

The rate of change of position of an object with time in a given direction is called

asked Nov 3, 2017 by priyanka.c

1 answer

A greater effort is required to stop a bullet from the gun than to stop a bullet of same mass which is thrown by the hand. This is due to

asked Nov 3, 2017 by priyanka.c

1 answer

The law of inertia was formulated by

asked Nov 3, 2017 by priyanka.c

1 answer

When a bus takes a sharp turn a person sitting in the bus experiences a force acting away from the centre of the curved path. This is due to

asked Nov 3, 2017 by priyanka.c

0 answers

Read the passage and answer the question below Different objects may take different amounts of time to cover a given distance. Some of them move fast and some move slowly. The rate at which objects move can be different. Also, different objects can move at the same rate. One of the ways of measuring the rate of motion of an object is to find out the distance travelled by the object in unit time. This quantity is referred to as speed. The SI unit of speed is ms-1. To specify the speed of an object we require only its magnitude. The speed of an object need not be a constant. In most cases, objects will be in non-uniform motion. Therefore we describe the rate of motion of such objects in terms of their average speed. The average speed of an object is the total distance divided by the total time taken. If the speed of the object is v, then v = s/t, where s I the distance travelled and t is the time taken. QUESTION : When an object covers unequal distances in equal intervals of time then it is said to be

asked Nov 3, 2017 by priyanka.c

1 answer

Read the following passage and answer the question below Different objects may take different amounts of time to cover a given distance. Some of them move fast and some move slowly. The rate at which objects move can be different. Also, different objects can move at the same rate. One of the ways of measuring the rate of motion of an object is to find out the distance travelled by the object in unit time. This quantity is referred to as speed. The SI unit of speed is ms-1. To specify the speed of an object we require only its magnitude. The speed of an object need not be a constant. In most cases, objects will be in non-uniform motion. Therefore we describe the rate of motion of such objects in terms of their average speed. The average speed of an object is the total distance divided by the total time taken. If the speed of the object is v, then v = s/t, where s I the distance travelled and t is the time taken. QUESTION : An object travels from A to B at 40 m/s and from B to A at 60m/s. Then its average speed is

asked Nov 3, 2017 by priyanka.c

1 answer

If the radius of the earth becomes twice its original radius without change in its mass, what will happen to your weight?

asked Nov 3, 2017 by priyanka.c

1 answer