Student's Name
01 Fill in the blanks
Chloroplast is present in
Symbol for Calcium is
Light travel in
The ability to do work is called
Energy due to its position is called
0:2 a) Define Energy
Answers
Answer:
1st eukaryotic
2nd ca
3rd Drummond light
Ans.1: i) Chloroplast. Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.
ii) Ca
iii)Light travels in straight lines
Shadows are evidence of light travelling in straight lines. An object blocks light so that it can't reach the surface where we see the shadow. Light fills up all of the space before it hits the object, but the whole region between the object and the surface is in shadow.
iv)Energy is a measurement of the ability of something to do work.
v) To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.
Ans.2:i) In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.