Exploring Forces
This chapter of the Class 8 NCERT Curiosity textbook introduces force as the push or pull behind every change in motion and shape. Learners sort forces into contact types such as friction and muscular effort and non-contact types such as gravity, magnetism and static electricity. Rolling, sliding and falling objects show how forces can speed, slow, stop or turn motion, while squeezing and stretching reveal changes of shape. Measuring force and testing balanced and unbalanced forces prepares learners to explain movement in the world around them.
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