Quick Answers
What is energy?
the ability to do work
What type of energy is used during digestion?
chemical energy
Name 2 reasons fossil fuels are not a sustainable (lasting) energy.
- they cause pollution
- dangerous
- nonrenewable
What does it mean to conserve energy?
- save energy by using energy in a positive way or only when you need it
If Elise placed her notebook on the kitchen table, how can she increase the potential energy of the notebook?
put the notebook up higher
What 2 types of energy does a television give off?
light and heat
List 2 examples of renewable and 2 examples of nonrenewable resources.
**Double Jeopardy**
Renewable: solar, wind, geothermal, hydroelectrical (water), biomass
Nonrenewable: nuclear, fossil fuels
**Double Jeopardy - list 1 advantage and 1 disadvantage of 1 renewable and 1 renewable resource**
Why does an appliance mean if it is energy-star rated?
- great for the environment
- uses less energy
What is the law of conservation of energy?
energy cannot be created or destroyed, it just changes forms
Draw an image of how energy is transformed from one source to another.
various
What are the advantages to using non-renewable resources?
- cheaper
- faster
- using for a long time
- easy to transport (move)
What does it mean to be an energy waster?
**Double Jeopardy**
- not using energy in a positive way/wasting energy
**Double Jeopardy - what are 5 ways people are energy wasters?**
How many bottles are water can you refill for 1 penny?
19
What type of energy is being used when we bounce a basketball?
What type of energy is being used when we drive a car?
What type of energy is being used when we turn on the television?
Basketball - sound, kinetic energy
Drive - mechanical, sound, electrical, chemical
Television - light, sound, heat, electrical
What are the disadvantages to using renewable resources?
- expensive
- some depend on the weather
- cannot control
What are 3 ways you can conserve energy in your house?
Various:
- use LED bulbs
- turn off water when not using
- turn off lights when not using
- take shorter showers
- walk or bike instead of driving
What 2 categories of energy is all energy part of?
**Double Jeopardy**
kinetic and potential
**Give an example of how an object uses both kinetic and potential energy**
When you turn on a radio that is plugged into a wall, what type of energy transformation is taking place?
electrical energy to sound energy
List 5 energy types from best (#1) to worst (#5) and explain why.
various - need proof!
Explain what phantom power is and why it is called phantom power.
phantom power is when you leave cords plugged in with nothing attached (charger plugged into the wall but no device charging)
It is called phantom power because it is similar to a ghost having the power (you cannot see it, but it is still using electricity)