From the following, check all that are true physics statements. Note that not ch

Question

From the following, check all that are true physics statements. Note that
not checking at least one of the true statements or choosing at least one false results
in a zero for this question.

1 Heat is the energy moving from a hotter object to a cooler one.
2 Energy is the power required to keep the masses at a constant level.
3 Heat is the temperature of the warmer of two bodies.
4 Heat is the same as the trial number.
5 Work is the result of a force moving a mass from one point to another.
6 Heat depends on the comfort level of the observer.
7 Energy is the push or pull required to change an object?s motion.
8 Mechanical work is the amount of energy transferred by a force acting through a distance.
9 Energy is the ability to do work.
10 Energy is something that appears in many different forms which are related to each
other by the fact that conversion can be made from one form of energy to another.
11 Heat is energy transferred from one body or thermodynamic system in thermal contact
with another when the systems are at different temperatures
12 Work is the effort required to lift the masses.

**my guess was 1,5, and 9 but that seems to be wrong

Explanation / Answer

Here is the answer True statements: 1,5,9,10,11 1. True. heat is the the flow of thermal energy from higher temperature to lower temperature 2. False. Statement does not even make sense. Power is the rate of change of energy. so "energy is the power" is already nonsensical 3. False. As said in 1. heat is a form of energy not a temperature 4. No. heat is the flow of energy, there is nothing random about it 5. True. Work done = Force x displacement in the direction of the force 6. False. Heat is the flow of energy, it is not observer specific 7. False. Force is the push or pull not energy 8. False. No mechanical work is work done by a mechanical force(i.e. friction, tension) 9. True. Yes energy is defined as the capacity to do work 10. True. There are many forms of energy(potential, kinetic , etc.) and they transform from one to another 11. True. Heat is the energy flow. 12. False. Work= Force x displacement in the direction of the force.

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