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Energy
sound energy
light energy
thermal energy
other
100
Name the different forms of energy ? (hint - we talked about 7 0f them )
What is 1. sound 2.light 3.electricity 4. magnetism 5.chemical 6. nuclear 7. mechanical
100
what is sound ?
What is sound is a wave of vibration that spreads from its source .
100
what must happen for you to see an object ?
What is light is wavelengths of visible light.
100
what is the difference between thermal energy and temperature ?
What is temperature is the measurement of thermal energy . thermal energy is the movement of kinetic energy.
100
Lose double points
lose double points
200
why do your hands get warmer when you rub them together ?
What is friction cause objects to get warmer.
200
what happens when sound waves hit a wall ?
What is sound waves bounce back and you hear an echo.
200
How is light energy like sound energy ?
What is they both travel in wavelengths.
200
what are the 3 forms of heat that are transferred?
What is 1. conduction 2.convention 3. radiation
200
Stored energy of an object due to its position is called _____________ .
What is potential energy
300
what determines how much kinetic energy a moving objects has ?
What is the speed and mass of an objects .
300
Lose points
lose points
300
what are the 2 situations at which light bends?
What is concave light and convex light .
300
which has greater thermal energy ice or water vapor ?
What is water vapor
300
an object has __________ because it is moving.
What is kinetic energy
400
Free space 400 points
What is free space 400 points
400
what effects the speed of sound ?
What is speed of sound is affected by how dense the object is .
400
How does light move ?
What is in a straight line
400
__________ is the transfer of heat between two objects that are in contact with one another.
What is conduction.
400
explain what causes the phase change when solid iron melts into liquid iron.
What is increasing the thermal energy from a solid to a liquid .
500
if you throw a ball up into the air , when is the greatest amount of potential energy being used ?
What is at its highest point in the air.
500
How is sound measured ?
What is in decibels.
500
double points 1ooo
What is double points 1,000
500
_____________ is another way that heat is transferred. This method is normally transferred by a moving liquid or gas.
What is convection
500
X-rays, microwaves , lights, and radio waves are all examples of ____________________.
What is electromagnetic radiation.