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questions & answers.
Q1.
Fill in the blanks:
- The Sl unit of energy is ____________.
- The energy stored in nucleus of an atom is called ____________.
- ____________ energy is utilised by the plants during the process of photosynthesis.
- In an electric bulb, the electrical energy gets converted into ____________.
- In a microphone, the ____________ energy gets converted into the electrical energy.
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- Joule
- Nuclear energy
- Light
- heat and light energy
- Sound
Q2.
State whether the following statements are true (T) or false (F). Correct the false statements
- A book lying on the study table has no energy.
- The energy cannot be transformed from one form to another form.
- A solar cell converts the light energy to electrical energy.
- Greater the mass of the body, lower is the kinetic energy of the body.
- The muscular energy is derived from the chemical energy stored in the food that we eat.
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answer not shownQ3.
Choose the correct option:
- The potential energy is directly proportional to ______________
- While burning the wood, the chemical energy changes to ______________
- When you kick a ball lying on the ground, the potential energy changes to ______________
- Which of the following is not a unit of energy? ______________
- When fire crackers burst, the chemical energy changes to ______________
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Answer:
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- (a) mass and the height of the body
- (b) heat energy
- (c) kinetic energy
- (c) Newton
- (d) heat, sound and light energy
Q4.
Match the columns:
| Column A | Column B |
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- (c) burning of a candle
- (d) atom bomb
- (e) sun
- (b) MRI
- (a) running water
Q5.
Show the following process in the form of a flowchart.
Energy in action and stored energy.
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Flowchart :






















































































