Energy Basics
What is energy?
Energy is the ability to do work
What type of Energy is involved in motion?
motion energy
What happens to energy when it moves from one object to another?
it gets transfered
How does sound travel?
in waves through a substance
What are conductors?
materials that let heat and electricity pass through
Can energy be created or destoryed?
No
what do we feel when atoms and molecules collide with each other?
heat or thermal energy
What creates a magnetic field?
electricity running through a wire
molecules vibrating
Name an example of a conductor
copper or metal
What does energy cause in objects?
causes change and movement
What is electrical energy?
the flow of tiny particles called electrons
What is the result of energy transfer?
it creates change in the object's state or motion
How does sound energy affect the environment?
causes change in the air pressure around us
What are insulators?
materials that do not let heat and electricity pass through easily
What happens to energy when it is transferred?
it creates change
What is sound energy?
moves in wave and causes molecules to vibrate
What is the process when energy moves from a hot object to a cold object?
heat transfer
What is the connection between sound and vibration?
sound is produced by vibrating objects
Name an example of an insulator
rubber
What is thermal energy based on?
the collision on atoms and molecules
Why can't you hear sound in space?
not enough air molecules for sound waves to vibrate
What is the principle of conservation energy?
energy cannot be created or destroyed, only transferred
Why do we hear sound differently in the water than air?
water has more molecules to carry sound waves.
Why are insulators important?
help prevent heat and electricity from escaping or causing harm