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.
kinetic energy
How can a roller coaster gain potential energy?
Go higher
Energy That will not run out
renewable
When an object changes position.
Motion
Stretching a rubber band
Potential Energy
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
Visible light is an example of what specific type of light energy? (Hint you learned this in Earth Science)
Electromagnetic
______ energy is the only source of energy we can see.
Light Energy
This type of energy is present in a glass of water on a table?
Potential energy
Energy from spitting an atom
Nuclear
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
Equation for momentum
p=m(v)
Units for Energy
A 60 kg girl is jogging at a speed of 8 meters per second. Calculate the energy:
1920 J
Christian uses 30 newtons of force to push a mower for 100 meters.The amount of work Christian does is:
3000 J
A hair dryer transforms _______energy to _____ ,________, & ________
electrical to mechanical, sound, and heat
What is Terminal Velocity
Max Speed
Air resistance = Gravity
The Law of Conservation of Energy states that energy is never created or destroyed, it is only ________ from one form to another.
changed
Calculate the Potential energy of a 4 kg ball falling from a height of 10 meters.
392 J
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
What is the #1 reason a feather takes longer than a bowling ball to fall?
Air resistance. When we remove it they fall at the same speed