The boiling point of a liquid will_________ with decreasing altitude.

Two objects move toward each other because of gravity. As the objects get closer and closer, the force between them

A 60 watt light bulb and a 100 watt light bulb are each connected to separate 120 Volt circuits. Which light bulb has more current in it?

The fact that the ocean water changes its temperature very little with the seasons is an indication that it has a

If the mass of an object doubled while its volume is cut in half, its density would

_____is a radioactive gas that originates in the earth and can cause cancer when it is breathed into the lungs.

A 100 kg mass has a density of 400 kg/m3. Its volume is

If I increase the decibel level of a sound source from 30 to 50 decibels, its intensity increases by a factor of

In an electrically neutral atom the number of protons residing in the nucleus is equal to the number of

A 20 meter long wave travels 80 m in 1 second. Its frequency is