What is Energy?
The ability to do work or cause change is called
What is energy
energy that is stored is called
What is potential energy
The form of energy associated with the motion, position, or shape of an object is
What is kinetic energy
Sunlight, wind, geothermal, hydroelectric are all examples of what type of resources?
Renewable
The energy of electric charges is called
What is electrical energy
When you do work on an object some of your energy is _______________ to that object
What is transferred
this type of energy of an object is equal to the work done to lift it to that height. This is called
What is gravitational potential energy
You can find an object's mechanical energy by adding together these two forms of energy.
What is kinetic and potential energy
Nucleus fusion reactions occur constantly in the
What is the sun
The efficiency of an average gasoline powered car is about 20%. which means?
a. The gas tank needs to be 20% filled with gasoline for motion.
b. The car uses 80% of the energy stored in the gasoline for motion.
c. The car uses 20% of the energy stored in the gasoline for motion.
d. The car wastes 20% of the energy stored in the gasoline
C. The car uses 20% of the energy stored in the gasoline for motion.
Objects of different masses are suspended from a height. Which combination of features will have the greatest gravitational potential energy?
High mass and high height
energy that is associated with objects that can be compressed or stretched is called
What is elastic potential energy
Energy that is formed when particles of solid liquid or a gas vibrate.
What is sound energy?
Thermal energy is also what type of energy?
What is heat energy
What type of energy is in the foods you eat, in the matches you use to light a candle and in the cells of your body?
Chemical energy
name the two basic types of energy
What is potential and kinetic
Which units are used for measuring energy?
Calories
What can keep ice from melting?
Insulator/Cooler
an apple possesses what type of energy before its eaten.
What is Chemical Energy
What energy transformation takes place when a radio is plugged in and turned on?
Electrical to sound
most accurately describe the Law of Conservation of Energy?
Energy cannot be created or destroyed but it can change from one type to another.
Suggest a method for reducing energy consumption for a house and explain your reasoning. +5 seconds to talk.
Teacher decides!
Examples: planting trees for shade instead of always using air conditioner, keeping lights off to reduce electrical energy consumption, short showers to reduce water waste.
What type of energy is stored in a battery?
Chemical Energy - it is then converted into electrical energy when its terminals are connected to a circuit.
What metal is the most common for batteries to use?
Lithium because it is soft and low in density so it can store a lot of energy relative to its size.
On a summer day, asphalt is hot on your bare feet because the asphalt has __________ heat from the sun.
absorbed