7. Energy and movement- Elastic and springs
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15 Terms
Elastic
A material that returns to its original shape after being stretched
Catapult
A device that uses stretched elastic to launch objects
Stretch
To pull something to make it longer or wider
Compress
To squeeze or press something to make it smaller
Store
To keep something for later use
Potential energy
Energy that is stored and ready to be used
Spring
A coiled piece of metal that can be stretched or compressed
Movement energy
Energy that makes things move
Twist
To turn or wind something around
Propeller
A device with blades that spin to create movement
Pogo stick
A toy with a spring that helps you bounce
Slinky
A toy spring that can move down stairs by itself
Energy
The ability to do work or cause movement
Release
To let go or set free
Original shape
The normal form of something before it's changed
Note 
Flashcards (131)