Question

A. Very Short Answer Questions.
1. Work is possible without energy. Yes/No
2. What is energy
3. Name the types of mechanical energy
4. What is the SI unit of energy?
5. Give an example of kinetic energy.
Name two sources of light in our surroundings
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Answer 1

Answer:

no

to do anything we need some power that we called energy

to take the help of machines

sun

Answer 2

Answer:

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Explanation:

1. no
2. energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
3. Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position).
4. joule
5. The kinetic energy of an object is the energy it has because of its motion.
6. Natural sources of light include the sun, stars, fire, and electricity in storms. There are even some animals and plants that can create their own light, such as fireflies, jellyfish, and mushrooms. This is called bioluminescence. Artificial light is created by humans.