Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
vibration
|
rapid back and forth movement
|
|
|
sound
|
vibrations you can hear
|
|
|
echo
|
a sound that reflects clearly enough to be heard
|
|
|
motion
|
a change of position
|
|
|
work
|
when a force moves something
|
|
|
force
|
a push or a pull
|
|
|
friction
|
a fore that slows or stops motion
|
|
|
gravity
|
a force that pulls objects toward the center of the earth
|
|
|
weight
|
the amount of force gravity has on an object
|
|
|
magnetism
|
the force of a magnet
|
