If You Move in the Direction in Which Gravity Acts

question 18

Multiple Choice

If you move in the direction in which gravity acts, an observer at rest sees your watch running

• A)slower than at your starting point.
• B)faster than at your starting point.
• C)neither of these

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Definitions:

Hydrofluoric Acid

A highly corrosive acid made of hydrogen and fluorine that is used in various industrial processes.

Sodium Hydroxide

A highly caustic metallic base and alkali salt, used in many industrial processes, often known as lye or caustic soda.

Sodium Hydrogen Carbonate

A chemical compound also known as baking soda, with formula NaHCO3, often used in cooking, cleaning, and neutralizing acids.

Sodium Carbonate

A white, water-soluble salt used widely in manufacturing glass, soaps, and detergents, and as a water softener.