Heat is a form of:
Which of the following is not a form of energy?
Husk can be removed from the grain by:
Diwali is a famous festival of India. In this festival people burn crackers. When these crackers burn, they turn into ashes. What is such burning of crackers an example of?
Matter is made up of these particles:
Melting is the opposite of:
The difference between boiling and evaporation is:
Two substances, P and Q, were used to fill a syringe. The plunger was then pushed in as shown in the diagram. Which of the following would most likely be P and which would be Q?
Gases consist of particles that:
Which change of state occurs when particles in a solid begin to move slowly past each other?
There is a gold chain weighing 100 g. If the jeweller melts 100 g of pure gold andsells it, he will get:
Which of the followings is a physical change?
What determines the speed of the atoms and molecules of a particular substance?
When ice melts to form water, energy.
The ability to change or to move matter is referred to as:
As the temperature of a fixed amount of gas at constant volume decreases, itspressure .
As the volume of a fixed amount of gas at constant temperature decreases, its pressure .
Mist seen often around ice cubes. Which of the following is a probable reason?
Which state of matter has particles able to slide past each other, yet still packedtogether?
The most common state of matter in the universe is called: