Friction is a great help to us. We would all just be sliding around
everywhere if there is no friction to keep us steady. That is why friction is
important in our everyday lives.
Are members of your family farniliar with the importance of friction? Il
not, what will you do? Would you like to know how well informed they are
when it comes to the importance of friction? Now, this is a challenge to you.
Ask them to answer the given situation.
A microwave oven uses radiation to cook or
defrost food quickly. This radiation causes
molecules in the food to vibrate and rub against
each other causing friction, thus, producing
heat. What do you think are some of the ways
that make cooking in a microwave different
from cooking in a stove?
DOOD​