Vocabulary
the ability to do work
energy
The biggest source of light energy
sun
Riding a bike is an example of this kind of energy.
Mechanical energy
How can a roller coaster gain potential energy?
Go higher
What 2 forces are acting on a falling pair of pants that fell off the laundry line?
Air resistance and gravity
The energy of motion
mechanical energy
Give 3 examples of light energy.
Light from the sun, candle, stoplight.
this form of energy cooks food in boiling water
thermal/heat energy
a light bulb converts electrical energy into which of the following energy?
light only
heat and light
heat only
light and motion
heat and light
A tablet changes ____energy into _____energy.
electrical to sound, light, thermal
______ energy is the only source of energy we can see.
Light Energy
Burning wood is an example of this type of energy.
Chemical energy
Both of these types of energy produce "waves" and are a part of our bodies' senses. Some examples are your tv, and your phone
Sound & light energy
What energy CHANGE takes place when someone plugs a radio into an electrical outlet?
light energy changes to sound energy
sound energy changes into electrical energy
electrical energy changes into sound energy
chemical energy changes into sound energy
Electrical energy changes into sound energy
A campfire changes _______into ______.
heat to chemical (the transfer to a marshmallow).
A wind turbine changes _____energy into_____energy.
mechanical - electrical
the energy that comes from a substance whose molecules are vibrating faster due to a rise in temperature.
heat or thermal energy
Give 3 examples of sound energy.
Making music, talking to each other, honking a horn.
A hair dryer transforms _______energy to _____ ,________, & ________
electrical to mechanical, sound, and heat
Sound energy is energy produced by ______.
vibrations
An alarm clock changes _____energy into_____energy.
electrical to sound
music coming from the radio, your loud vacuum cleaner, people talking on tv are all examples of this type of energy
sound energy
I have 250J of kinetic energy on a 50kg rollercoaster. What is the coasters velocity?
3.16m/s
Water can be changed to all forms of energy because Energy is what?
Transferred to other forms
Give 3 examples of Mechanical energy.
-a train moving.
-jumping on a trampoline.
-pedaling a bike.