Advertisements
Advertisements
प्रश्न
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
Advertisements
उत्तर
The nail becomes hot due to friction. Friction changes kinetic energy to heat.
APPEARS IN
संबंधित प्रश्न
Explain why sportsmen use shoes with spikes.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
A charged glass rod attracts a charged plastic straw.
What is the cause of friction?
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Fill in the blank.
Friction depends upon the ............... of an object.
State if the following statement is true or false. Correct the statement if it is false.
Friction helps us to grip the objects in our hand.
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
A moving body comes to rest due to friction alone.
Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
