Vocabulary
Sound & Light
Energy Changes
Interesting Facts
This or That
100
The ability to do work or cause a change.
What is energy?
100
If a sound wave hits a hard, smooth surface, it bounces back. The reflected sound is called this.
What is an echo?
100
When we clap our hands it changes kinetic energy into this type of energy.
What is sound energy?
100
This type of energy can actually lead certain types of matter to change phases (e.g. solid to liquid or liquid to gas).
What is thermal energy?
100
Kinetic energy would be greater for a horse galloping or a horse walking.
What is a horse galloping?
200
The type of energy that is due to motion or movement.
What is kinetic energy?
200
How high or how low a sound seems is called this.
What is pitch?
200
The amount of kinetic energy an object has depends on these two things.
What is mass and speed?
200
Particles in an object will have more kinetic energy, or move around a lot faster, when its thermal energy increases or decreases.
What is increases?
200
A basketball's greatest potential energy occurs when it is on the ground or at its hightest point in the air.
What is at its highest point?
300
The type of energy that is not causing any changes now, but could cause changes in the future.
What is potential energy?
300
This type of energy travels in straight lines called rays.
What is light?
300
When a roller coaster card is sitting at the top of a hill, it has the maximum amount of this kind of energy.
What is potential energy?
300
An object that is in the path of light waves will cause one of these to appear.
What is a shadow?
300
A liquid absorbing enough thermal energy to escape the forces between its particles is either called melting or vaporizing.
What is vaporizing?
400
The transfer of heat between objects that are in contact.
What is conduction?
400
When light rays bounce off a surface back to our eyes, we call it this.
What is reflection?
400
This energy travels in waves and requires particles in the air in order for it to exist.
What is sound energy?
400
This type of energy actually travels faster in water than it does in the air, which is different than most other types of energy.
What is sound?
400
Thermal energy naturally flows from one kind of temperature to another, either hot-to-cold or cold-to-hot.
What is hot-to-cold?
500
A way that heat flows from one object to another by electromagnetic waves.
What is radiation?
500
Light can change directions and bend when it moves through certain materials, like a prism and is called this.
What is refraction?
500
This form of water has the greater thermal energy.
What is water vapor or steam?
500
A sound's loudness is measured in this type of units.
What is decibels?
500
A food with under 100 calories that I would want to enjoy before going out to exercise could be either a bagel or an apple.
What is an apple?
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