Energy Transformations 1
A ball is sitting at the top of a ramp and then is pushes down- as the ball rolls down the ramp. What were the energy transformations?
Potential to kinetic energy
True or False; Energy can be created?
False
Ture or False; Energy cannot be destroyed.
True
True or False; Energy can change forms.
True
How does a microwave cook food?
Using raidant heat energy
How is energy conserved in a food web?
Energy is conserved in a food web by going from radiant light to chemical energy and then chemical again over and over again.
What energy transformation takes place in a car in no order?
chemical, electrical, thermal, mechanical, sound radiant and light.
Do solar panels need light or heat energy?
Light
Does total energy ever change and why?
No it always equals 100%
What two energies are paired with radiant energy?
Light and heat
How is energy typically "lost"?
As Thermal energy
How does rubbing your hands together on a cold day explain the Law of Conservation of Energy?
mechanical energy (rubbing hands together) transformed to thermal energy (warming up hands)
What position on a skateboard ramp does the skateboarder have 50/50 kinetic and potential energy? At the top of the ramp
Bottom of the ramp
or just prior to the bottom of the ramp
just prior to the bottom of the ramp
If kinetic energy is increasing then potential is what?
decreasing
Using energy transformations describe the process of photosynthesis.
Radiant light becomes chemical energy
What energy conversions take place with a battery powered flashlight?
Chemical energy to electrical energy to light and thermal energies
What describes the energy transformations that occur in a toaster?
Electrical energy, mechanical energy, thermal energy, light energy, chemical energy
How does the Law of Conservation of Energy play a role in the powering of a wind turbine?
kinetic energy from the wind is converted to mechanical energy of the turbine which is then transferred to electrical energy form the generator which runs through the grid to homes and businesses
The energy isnt used like a lamp produces heat but we dont use it to stay warm.
What does conserved mean and how does energy conserve itself? Why does it conserve itself?
Conserved mean to save or be saved and energy conserves itself by transferring into a new energy form so it doesn't get destroyed because energy cant be destroyed.
What type of energy is stored in liquid fuel?
Chemical energy
Can the energy of a ball bouncing get transferred to the surroundings and if so, how and if not, why?
Yes, energy gets converted into sound
putting a warm can in a cooler of ice will do what to the total amount of energy in the cooler?
the total amount of energy will stay the same
How is energy conserved in a battery powered circuit with a bulb on it.
Chemical becomes electrical which then becomes light and then heat.
State the Law of Conservation of Energy
Energy cannot be created or destroyed only transformed from one form to another