What is energy 1?
The ability to do work or cause change.
What is energy?
Two types of potential energy.
What are Gravitational and Elastic?
Materials that do not allow any light to pass through.
What are opaque?
A wave of vibrations that spreads from its source.
What is sound?
Eye glasses __________ light.
What is refract?
The type of energy that involves motion.
What is kinetic?
A washing machine can change electrical energy into __________.
What is mechanical energy?
To take in something.
What is absorb?
The back-and-forth motion of an object.
What is a vibration?
Name 2 electromagnetic waves.
What are light, infrared, and radio?
Energy that is not causing changes now but could cause changes in the future.
What is potential energy?
Name two ways electricity is transformed in a television.
What is light energy and sound energy?
_________ can travel through a vacuum but _______ cannot.
What is light and sound?
Travels through different materials at different speeds.
What are sound waves?
Bending of light.
What is refraction?
Type of energy due to motion.
What is kinetic energy?
Name the poles of a magnet.
What are north and south?
When all colors of visible light are mixed you see __________.
What is white?
Number of compressions that pass by a point each second.
What is frequency?
The reason light doesn't bend when it hits an opaque object.
What is light travels in a straight line?
Amount of kinetic energy in a moving object depends on its _________ and its __________.
What are speed and mass?
Type of potential energy that is present in a compressed spring.
What is elastic potential energy?
When light bounces off an object.
What is a reflection?
Sound waves transfer________.
What is energy?
Makes up electromagnetic waves.
What are electrical and magnetic energy?