. Which doe not belong to the group? a. Joules b. Joules/sec c. Calories d. Kilocalories 2. A block of wood is resting on a table. For work to be done on the block ________. a. the block moves whether or not a force acts on it. b. the block must move because of a force acting on it c. the block must not move d. a force must act on the block
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
letter only. no need for solution.
1. Which doe not belong to the group?
a. Joules
b. Joules/sec
c. Calories
d. Kilocalories
2. A block of wood is resting on a table. For work to be done on the block ________.
a. the block moves whether or not a force acts on it.
b. the block must move because of a force acting on it
c. the block must not move
d. a force must act on the block
3. Which of the following possess gravitational potential energy?
a. A car running at a speed of 60 km/H
b. A ceiling fan attached at the 4 meter high ceiling of the house.
c. A driver pressing the brake of the car from 70 km/H to 20 km/H.
d. A spring was compressed by 10 cm.
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