Available Answers

1. 1.

   Fill in the blanks:

   1. The Sl unit of energy is ____________.
   2. The energy stored in nucleus of an atom is called ____________.
   3. ____________ energy is utilised by the plants during the process of photosynthesis.
   4. In an electric bulb, the electrical energy gets converted into ____________.
   5. In a microphone, the ____________ energy gets converted into the electrical energy.
2. 2.

   State whether the following statements are true (T) or false (F). Correct the false statements

   1. A book lying on the study table has no energy.
   2. The energy cannot be transformed from one form to another form.
   3. A solar cell converts the light energy to electrical energy.
   4. Greater the mass of the body, lower is the kinetic energy of the body.
   5. The muscular energy is derived from the chemical energy stored in the food that we eat.
3. 3.

   Choose the correct option:

   1. The potential energy is directly proportional to ______________
   2. While burning the wood, the chemical energy changes to ______________
   3. When you kick a ball lying on the ground, the potential energy changes to  ______________
   4. Which of the following is not a unit of energy? ______________
   5. When fire crackers burst, the chemical energy changes to ______________
4. 4.

   Match the columns:
    

   Column A	Column B
   Heat energy Nuclear energy Solar energy Magnetic energy Kinetic energy	Running water MRI Burning of a candle Atom bomb Sun

5. 5.

   Show the following process in the form of a flowchart.

   Energy in action and stored energy.

6. 6.

   Show the following process in the form of a flowchart.

   Transformation of energy in a hydroelectric power plant.