Download Student Designed Science Test

Chapter 4 Test
By: T and R and T
• Describe the relationship between work and
energy!
• Relate Kinetic Energy to mass and speed!
• Analyze how Potential Energy is related to an
object’s position!
• Give examples of major forms of energy and
explain how each is produced!
Answers part #1
#1- When work is done on an object energy is transferred to that object!
#2- The Kinetic Energy depends on any moving object!
#3- The energy is stored as a result of height and shape (position)!
#4
Energy
Example
How it’s produced
Kinetic Energy
Rain falling
By the energy of motion.
Potential Energy
Rain after it hits the ground
Energy that is stored in
result of position.
Gravitational Potential
Energy
A diver standing motionless
on the end of a diving
board.
It depends on the objects
height, mass, and
acceleration.
Elastic Potential Energy
Stretched rubber band
An object being stretched or
compressed
A wind up toy
You twist the wind up toy
which turns the gears that
makes the toy move
Mechanical Energy
Energy
Example
How it’s Produced
Thermal Energy
Thermal Underwear
The atoms move faster
Chemical Energy
Toasting a
Energy is released and
marshmallow over a fire heats the marshmallow
Electrical Energy
Lightening
Energy is associated
with electric charges
Electromagnetic Energy
Satellite in space
Waves
Nuclear bomb
The atoms are
surrounded by nuclear
and when they get
stuck it explodes
Nuclear Energy
Section 4-2 objectives
1. Describe conversions of energy from one form
to another.
2. State and apply the law of conservation of
energy.
3. Analyze how energy is conserved in
conversions between KE and PE.
4. Describe the relationship between energy and
mass.
Answers
1.
2.
3.
4.
The conversion is like cause and effect. Example a bird
with a ouster it’s increasing the oysters potential
energy. Bird drops oyster and the potential energy to
kinetic energy. Then the oyster falls and hits the rock
and breaks. Kinetic Energy is converted to work and
thermal energy .
States that energy can’t be created or destroyed.
The energy has to be present at the beginning of a
process is the same as the amount of energy at the
end.
There is not a relationship.
Chapter 4 lesson 3 Objectives
Classify energy resources as renewable or non renewable!
Evaluate benefits and drawbacks of different energy sources!
Describe ways to conserve energy!
Renewable and Non- Renewable Energy
#1
Energy
Renewable
*
Fossil Fuels
Hydroelectric
Energy
Solar Energy
Geothermal Energy
Biomass Energy
Hydrogen Fuel Cell
Wind Energy
Nuclear Energy
Non- Renewable
*
*
*
*
*
*
*
#2
Energy
Benefits
Draw Backs
Fossil Fuels
Inexpensive and
easy to get
It pollutes
Solar Energy
No pollution and low
cost
Must have sun
Hydroelectric
Energy
No pollution and low Environmental impact
cost
disrupts wild life
Geothermal Energy
No pollution
Not very accessible
Biomass Energy
Cheap and
renewable
Pollution
Hydrogen fuel cell
No pollution
Not as efficient
Wind Energy
No pollution, low
Needs wind and space
cost, and renewable
Ways to conserve energy!
Turn off lights when not using!
Unplug everything you’re not using!
Ride your bike instead of your car!
Use florescent lights!
Use solar powered cars!