What is Energy?
What is Energy 2?
Form of Energy
Forms of Energy 2
Energy Transformations
100
The ability to do work or cause change is called
What is energy
100
energy that is stored is called
What is potential energy
100
The form of energy associated with the motion, position, or shape of an object is
What is kinetic energy
100
Sunlight, wind, geothermal, hydroelectric are all examples of what type of resources?
Renewable
100
The energy of electric charges is called
What is electrical energy
200
When you do work on an object some of your energy is _______________ to that object
What is transferred
200
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
200
You can find an object's mechanical energy by adding together the object's
What is kinetic and potential energy
200
Nucleus fusion reactions occur constantly in the
What is the sun
200
The efficiency of an average gasoline powered car is about 20%. which means?
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.
300
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
300
energy that is associated with objects that can be compressed or stretched is called
What is elastic potential energy
300
Energy that is formed when particles of solid liquid or a gas vibrate.
What is sound energy?
300
Thermal energy is also what type of energy?
What is heat energy
300
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
What is chemical energy
400
name the two basic types of energy
What is potential and kinetic
400
Which units are used for measuring energy?
Calories
400
What can keep ice from melting?
Insulator
400
an apple possesses what type of energy before its eaten.
What is Chemical Energy
400
What energy transformation takes place when a radio is plugged in and turned on?
Electrical to sound
500
most accurately describe the Law of Conservation of Energy?
Energy cannot be created or destroyed but it can change from one type to another.
500
Using the information on the table below, suggest three methods for reducing energy consumption for the house and explain your reasoning.
upgrading some features such as double pane windows, highefficiency
water heater and changing to fluorescent bulbs
passive design: adding tress or awnings for shading the house in the hot climate
500
DOUBLE JEOPARDY!!!!!
Use the data below from a calorimetry lab to determine the energy generated from burning a potato chip.
How many Calories were:
a. transferred to the water? (show your work)
b. contained in the potato chip? (show your work)
A. Calories released= 7.3 Calories
b. 7.3 Calories because the energy absorbed by the water is equal to the energy released by the chip
500
Metals can be compared based on their reactivity. Look at the table below and predict which pair would produce the most energy when used together in a chemical battery.
magnesium and zinc
500
On a summer day, asphalt is hot on your bare feet because the asphalt has __________ heat from the sun.
absorbed