Available Answers

1. 1.

   Multiple Choice Questions (MCQs). Tick (√) the right option:

   1. Which is the main source of energy?
      1. Heat
      2. Sun
      3. Electricity
      4. None of these
   2. In a battery cell, energy is stored in the form of _______________.
      1. Heat energy
      2. Light energy
      3. Chemical energy
      4. None of these
   3. The capacity to do work is called ______________.
      1. Friction
      2. Force
      3. Energy
      4. None of these
   4. Which action need maximum energy?
      1. Walking
      2. Riding a bicycle on level ground
      3. Riding a bicycle up a hill
      4. None of these
   5. Electric bulb converts
      1. Light into chemical energy
      2. Electrical into light energy
      3. Light into electrical energy
      4. None of these
2. 2.

   Fill in the blanks with the given words:

   solar

   wind

   easier

   work

   heat

   1. The moving air has energy called _____________ energy.
   2. The energy that we get from the sun is called ______________ energy.
   3. _______________ is another form of energy.
   4. Energy is the capacity to do _______________.
   5. The machines make work _______________.
3. 3.

   Write 'T' for true or 'F' for false:

   1. A push or a pull is a force.
   2. We can see a force.
   3. We use energy to do work.
   4. We get solar energy from sun.
   5. Water energy is used to produce electricity.
4. 4.

   Match the following:

   1. Electrical bulb	a. Chemical to electrical
   2. Coal fire	b. Chemical to heat and light
   3. Television	c. Heat energy to mechanical
   4. Batteries	d. Electrical to light
   5. Petrol engine in car	e. Electrical to light and sound

5. 5.

   What is force?

6. 6.

   Name different forms of energy.