Question

You slide a coin across the floor, and observe that it slows down and eventually stops. A sensitive thermometer shows that its temperature increased. What can we conclude? (Select all that apply.)

Answer 1

When you slide a coin across the floor, it slows down and eventually stops due to the force of friction. The friction converts the coin's kinetic energy into thermal energy, resulting in an increase in temperature.

Step-by-step explanation:

When you slide a coin across the floor, it eventually slows down and stops due to the force of friction acting on it. Friction is a force that opposes the motion of objects in contact, and it causes the coin to lose kinetic energy, slowing it down. As the coin slows down, its kinetic energy is converted into thermal energy, increasing the temperature of the coin and the surface it slides on. This is why a sensitive thermometer shows an increase in temperature when the coin slides.

Answer 2

Step-by-step explanation:

Coin slide across the floor and finally comes to stop with an increase in temperature.

We can conclude that the coin interacted with one or more object which reduces its velocity.

• It is also possible that coin stop due to friction which elevates the coin temperature by converting some part of its energy into thermal energy