Heat as Kinetic Energy

Q.

___refers to a heat transfer between substances that are in direct contact with each other.

Q. the potential energy u of a particle varies with distance from a fixed origin as u = A( square root of X)/X+B , where A and B are constant .find dimensions of A and B

Q. A bucket full of water is kept on the first floor of your house, and another identical bucket with the same quantity of water is kept on the second floor. Which of the two has greater potential energy?

1. Both buckets have the same potential energy.
2. None of the above
3. The bucket on the first floor has greater potential energy.
4. The bucket on the second floor has greater potential energy.

Q. The energy which a body possesses by virtue of being in motion is called _______________.

1. potential energy
2. muscular energy
3. mechanical energy
4. kinetic energy

Q.

Kinetic energy of the molecules of a substance increases with increase in__________.

1. mass

2. temperature

3. area

4. volume

Q.

Can you please send me a video on potential energy.

Q. Energy of an object by virtue of its position is called _____________.

1. solar energy
2. mechanical energy
3. muscular energy
4. potential energy

Q. Sum of potential energy and kinetic energy is called ______________.

1. mechanical energy
2. muscular energy
3. solar energy
4. wind energy

Q. Suppose a body A at a higher temperature is brought into contact with another body B at a lower temperature, then atoms of body A become more active and atoms of body B become less active.

1. False
2. True

Q. Arrange the following in the decreasing order of kinetic energy of molecules.

1. Steam at ${101}^{\circ }C$
2. $\mathrm{Water}\mathrm{at}{80}^{\circ }C$
3. Water at ${50}^{\circ }C$
4. Ice at $-{10}^{\circ }C$

Q. Which of the given statements is correct?

1. A
2. B
3. C
4. D

Q. A measure of average kinetic energy of the particles of a substance is its:

1. Temperature
2. Pressure
3. Heat energy
4. Mass

Q.

With respect to the given assertion and reason. Choose the correct option.
Assertion [A]: With an increase in the temperature of a gas inside a container, its pressure also increases.
Reason [R]: Upon heating, the kinetic energy of the gas molecules increases, which in turn results in a greater force exerted on the walls of the container.

1. Both [A] and [R] are true, but [R] is not the correct explanation for [A]

2. Both [A] and [R] are true and [R] is the correct explanation of [A]

3. [A] is correct and [R] is incorrect

4. [A] is incorrect and [R] is correct

Q.

Heat transfer through conduction is ___.

1. an exchange of density of particles

2. an exchange of mass

3. an exchange of potential energy of particles

4. an exchange of kinetic energy of particles