Which characteristic of the Sun primarily determines the orbits of planets in our solar system? A. Large value
B. Strong gravitational field
C. Mostly made of hydrogen
D. High surface temperatures

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

What energy is it when you flip on a switch on a lamp