Energy in the form of motion is potential energy.

True

False

Why do many species that existed 35 million years ago no longer exist

What does an unconformity in a sequence of rock layers reveal about geologic history? A. A rock layer must have turned upside down. B. A layer of rock might have eroded. C. The layers must cover hundreds of square miles. D.

Which organelle generates most of the energy the cell needs to function and stay alive?

NaOH is__ an acid a base a salt

The speed of an electric motor canbe controlled by varying the amount of current through the motor

Materials having resistance changes as voltage or current varies are called:

Which can you do to reduce the power consumption in your home? A Add more circuit breakers. B Wire more parallel circuits. C Replace 75-watt light bulbs with 40-watt light bulbs.

How could you identify the unmarked poles of a magnet? A. Observe the concentration of field lines. B. Put a magnet with known poles nearby. C. Sprinkle iron fillings nearby and observe the field lines. D.

According to the equation for the Balmer line spectrum of hydrogen, a value of n = 3 gives a red spectral line at 656.3 nm, a value of n = 4 gives a green line at 486.1 nm, and a value of n = 5 gives a blue line at 434.0 nm.

Technician A says that gaskets are used to fill a space or gap between two objects to prevent leakage from occurring.