Which of these is a source of voltage?

a. a battery

b. a generator

c. an electrical outlet

d. all of these are voltage sources.

Mirage is due to ... A. unequal heating of different parts of the atmosphere B. magnetic disturbances in the atmosphere C. depletion of ozone layer in the atmosphere D. equal heating of different parts of the atmosphere

Challenge: Some but not all of the gasoline used by car's enegine is transformed into kinetic energy. Where might some of the energy go in this system?

Which of the following statements is true regarding the relationship between the solubility of a substance and temperature? a solute. A. Increasing the temperature always increases the solubility of B.

If gas particles start colliding with the walls of their metallic container with increased force, what is their direct effect?. lower gas pressure. higher gas pressure. lower volume of gas. higher volume of gas

Which drum would make a sound that fades away faster - one that makes a loud sound or one that makes a more mellow sound Why?

What are factors that would change the position of the wave lengths measured? (There are more than one answer.) a) size of the tube b) tuning fork frequency c) distance between the tuning fork and tube d) room temperature e) area of the tube

This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the A. proton. B. photon. C. neutron. D. electron.

Projectile motion is an example of what kind of motion

What can change scientific knowledge?

6. What is ductility?