Vocabulary
The ability to cause change or do work.
What is energy?
the type of potential energy an object has due to its height above the ground. (Be specific)
What is gravitational potential energy?
If there are two objects with the same mass, then the one that is _________________ will have more kinetic energy.
Moving Faster
What energy transformation occurs during photosynthesis?
radiant to chemical
State the law of conservation of energy.
Energy can neither be created nor destroyed. It can only be transformed into other forms of energy.
Stored energy due to position
What is potential energy?
the type of potential energy found in springs and stretched rubberbands
What is elastic potential energy?
If two objects are moving at the same speed, then the one with __________ will have more kinetic energy.
more mass
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
Electrical to light
Where does a roller coaster cart have the most potential energy?
most at the top
energy an object has due to motion
the type of potential energy found in food
What is chemical potential energy?
Fill in the blank: Kinetic energy depends on the ______________ and _______________ of the object.
Mass and speed.
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
chemical to mechanical
Fill in the blank: ____________ is changed from one form to another.
Energy
the total kinetic and potential energy an object has
What is mechanical energy?
Two apples are hanging from a tree. How can you tell which one has more potential energy?
The apple that's higher up will have more potential energy.
1. A bowling ball and a soccer ball are both moving at the same speed. Which one has more kinetic energy? Why?
The bowling ball, because it has more mass.
What type of energy transformation occurs in an electric fan?
Electrical to mechanical
the kinetic energy plus the potential energy due to position stored in an object
What is mechanical energy?
the unit energy is measured in.
What is the joule?
Your pencil and notebook are both on the table. Which has more potential energy? Explain.
The notebook because it has more mass than the pencil.
If two objects are moving at the same speed, how could one have more kinetic energy than the other?
One has more mass.
What energy transformations take place when a battery-operated radio is in use?
(3 transformations)
Chemical to electrical to sound
Roller coasters slow down because their energy disappears. True or False and explain your answer
False, energy is not created or destroyed. The kinetic energy in the roller coaster is transformed into potential energy (and some heat)