How Friction Produces Heat
Trending Questions
Q. In ancient times, two stones were rubbed together to produce fire. The stones get heated up due to friction on rubbing and produce fire.
- True
- False
Q.
Give the reason for the following:
The early man could produce fire by rubbing together two stones.
Q. A space shuttle while descending rapidly to the surface of earth from a mission gets heated up intensely and catches fire. Assuming no malfunctioning of its engine or components, what can be a possible cause?
- Velocity of the shuttle is too low.
- Earth's atmosphere offers frictional force.
- Parachutes are attached.
- Gravitational pull of the Sun is too strong on the shuttle.
Q. A matchstick lights up due to heat created by friction.
- True
- False
