Energy Sources
Food is an example of _____ energy.
Chemical
When I hold a ball in the air it has ___ energy.
Stored or potential
If I set out a cup of soil in the sun and it warms up, is this energy transfer or energy transformation?
Energy Transfer: The suns heat energy is transferring to the cup of soil and warming it up
Label the energy transfer that occurs:
The sun helps carrots grow. A kid eats the carrot. The kid is playing baseball with his friends. There is a loud sound when his bat hits the ball.
solar to chemical to mechanical to sound
What is energy?
It is how things move or change.
Both potential and kinetic energy
In order for energy to transform from a battery (chemical) to a lightbulb (light and heat), you can create a circuit. However, you must make sure your circuit is _________.
closed
Which of the following do not contain fossil fuels or chemical energy:
batteries
lightbulbs
gasoline
solar panels
solar panels
When you roll a marble and it hits another marble is this an example of energy transfer or energy transformation?
Energy transfer
True or false:
When an object is just about to hit the ground, it still has both potential and kinetic energy.
True
In a light bulb and battery circuit, the battery has chemical energy, the bulb has light and heat energy, what type of energy?
electrical
Sound moves in ____.
waves
What types of energy does a tv have?
electrical, sound, light, heat
As an object falls and the potential energy becomes kinetic energy, is this an example of an energy transfer or transformation?
Energy transformation
Explain how marbles rolling into each other shows both energy transfer and energy transformation.
The moving marbles hit each other causing the next one to move this is energy transfer. The sound they make when they hit is a transformation from mechanical energy to sound energy.
Waves have____ and _____
amplitude and wavelength.