Vocabulary
Energy
The ability to cause change
How is energy related to work?
Work is the transfer of energy that occurs when a force causes an object to move
What transforms mechanical energy into thermal energy
Friction
What are nonrenewable energy resources?
an energy resource that is available in a limited amount and can be used up
A slow moving bowling ball has more kinetic energy than a fast moving bowling ball
Disagree. The slower an object moves the less kinetic energy it has, so the faster moving bowling ball has more kinetic energy
Kinetic Energy
energy due to motion/something that IS moving
What are the different forms of energy ?
Ex. Mechanical , Electric , Nuclear
radiant
Sound
Thermal
Potential
Kinetic
How are different types of energy used?
by transforming it from one form to another
What are renewable energy resources
a resource that is replaced in nature as fast as or faster than it is used
A book sitting on a shelf has no energy
Disagree. It has thermal and kinetic energy
Potential Energy
stored energy/something that is NOT moving
Which of the following objects has kinetic energy?
a bicycle parked at the top of a hill
a ball rolling across the floor
leaves lying on the ground beneath a tree
a sunny windowsill
a ball rolling across the floor
Any form of energy can be transformed into other forms of energy. True or False?
True
Why is it important to conserve energy
to reduce the rate at which energy resources are used
Energy can change from one form to another
Agree
law of conservation of energy
energy can be transformed from one form into another or transferred from one region to another, but energy cannot be created or destroyed
What two factors determine how much kinetic energy an object has?
Speed and mass
Energy can be destroyed
False. Energy cannot be created or destroyed
Turning off the lights before you leave the house is an example of conserving energy. True or False
True
If you toss a ball straight up total energy increases as the ball rises
Disagree. Total energy stays constant (the same)
friction
is a force that resists the sliding of two surfaces that are touching
What two factors determine how much potential energy an object has?
speed and mass
Friction trans forms mechanical energy into radiant energy
False. Friction transforms mechanical energy into thermal energy
Definition of Fossil Fuel
are remains of ancient organisms that can be burned as an energy resource
The cars in a parking lot are a representation of potential energy
Agree