Topic: Forms Of Energy
Forms Of Energy
Which quantity is equal to 50 kilojoules?
(1) 0.05 J
(2) 500 J
(3) 5 × 103 J
(4) 5 × 104 J
Three forms of energy are
(1) chemical, exothermic, and temperature
(2) chemical, thermal, and electromagnetic
(3) electrical, nuclear, and temperature
(4) electrical, mechanical, and endothermic
Which unit is used to express an amount of thermal energy?
(1) gram
(2) mole
(3) joule
(4) pascal
Which list includes three forms of energy?
(1) chemical, mechanical, electromagnetic
(2) chemical, mechanical, temperature
(3) thermal, pressure, electromagnetic
(4) thermal, pressure, temperature
Which form of energy is transferred when an ice cube at 0°C is placed in a beaker of water at 50°C?
(1) chemical
(2) electrical
(3) nuclear
(4) thermal
Which type of energy is associated with the random motion of atoms and molecules in a sample of air?
(1) chemical energy
(2) electrical energy
(3) nuclear energy
(4) thermal energy
Which form of energy is associated with the random motion of particles in a gas?
(1) chemical
(2) electrical
(3) nuclear
(4) thermal
The joule is a unit of
(1) concentration
(2) energy
(3) pressure
(4) volume
Which form of energy is associated with the random motion of the particles in a sample of water?
(1) chemical energy
(2) electrical energy
(3) nuclear energy
(4) thermal energy
Which term identifies a form of energy?
(1) combustion
(2) exothermic
(3) thermal
(4) electrolytic
Which list includes three forms of energy?
(1) thermal, nuclear, electronegativity
(2) thermal, chemical, electromagnetic
(3) temperature, nuclear, electromagnetic
(4) temperature, chemical, electronegativity
Which list includes three forms of energy?
(1) temperature, chemical, thermal
(2) temperature, thermal, alkalinity
(3) electromagnetic, nuclear, chemical
(4) electromagnetic, alkalinity, nuclear
Which form of energy is converted to thermal energy when propane burns in air?
(1) chemical
(2) electrical
(3) mechanical
(4) nuclear
Carbon dioxide, CO2, changes from the solid phase to the gas phase at 1 atm and 194.5 K. In the solid phase, CO2 is often called dry ice. When dry ice sublimes in air at 298 K, the water vapor in the air can condense, forming a fog of small water droplets. This fog is often used for special effects at concerts and in movie-making.
At 1 atm and 190. K, compare the amount of thermal energy in a 1.0-kilogram block of dry ice to the amount of thermal energy in a 2.0-kilogram block of dry ice.
Allow 1 credit. Acceptable responses include, but are not limited to:
• The block of dry ice with less mass contains less thermal energy.
• There is more thermal energy in the 2.0-kg block.