- lifting objects up, which increases potential energy, is work done __________ gravity
- energy can change its form, but the total ___________ won't change
- an object gains ____________ energy as it falls down
- kinetic energy _____________ = negative work done; velocity and acceleration in the opposite direction (object slows down)
- an object loses ____________ energy as it falls down
- total/net work can be __________ (pos & neg forces cancel out) but work is still being done
- kinetic energy _______________ = no work done, no change in motion
- work is ___________ if the force is in the same direction as the motion
- an object loses _________ energy when lifted
- work can be done by any force as long as ___________ is involved
- An object gains __________ energy when lifted
- what is the abbreviation of decibels
- when sounds and their reflecting reach your ears at different times, you might hear an echoing that is
- what indicates the amplitude of a compressional wave
- system that uses the reflection of underwater sound waves to detect objects
- what is the abbreviation for hertz
- the process of location objects by emitting sounds and interpreting the sound waves reflected back
- created when specific pitches and sound qualities are used deliberately in a set pattern
- what passes sound vibrations to the hammer, anvil and stirrup
- a hollow chamber filled with air that amplifies sound when its air vibrates