5.1
Where is nuclear energy found?
In the nucleus of the atom
What is friction?
A force that resists the sliding of 2 surfaces that are touching.
Why are renewable resources considered renewable?
Because they can be re-used and replenished.
The ability to cause change
Energy
What part of the electromagnetic spectrum can we see?
Visible light
What is the top part of a wave called?
Crest
If a ball is thrown straight into the air and comes straight back down, why does the potential energy of the ball decrease as it falls?
The height decreases as it falls.
What is the difference between an inexhaustible resource and a non-renewable resource?
Nonrenewable cant be re-used and inexhaustible cant be used up.
Energy due to motion
Kinetic energy
Answers vary
How are electric energy and heat energy different?
Electric-energy that electric current carries
Thermal-heat
Energy can be transformed from one form into another or transferred from one region to another, but cant be created or destroyed
What are 3 types of fossil fuels
Coal, natural gas, and petroleum
Remains of ancient organisms that can be burned as an energy source.
What is the distance between crests on a wave known as?
Wavelength
What is the distance from the midline to the crest or trough known as?
Give 2 examples of friction creating thermal energy.
Rubbing hands together, ect.
Why is nuclear energy from nuclear power plants harmful to the environment?
It releases greenhouse gases which are harmful to the atmosphere
Energy that electromagnetic waves carry
Radiant energy
Draw a wave on the board and label the 5 parts.
On board
Does a person work when he or she lifts a box? Does a person work when he or she holds a box in the air?
Work is done when lifting the box but not while holding it in the air.
Why is thermal energy common?
all forms of energy can easily change into thermal energy.
How is nuclear fission used to generate electric energy?
Heat produced by the fission is used to make steam to turn turbines that run an electric generator.
Total energy of an object or group of objects due to large scale motions and interactions
Mechanical energy
Which type of energy on the electromagnetic spectrum has the lowest wavelength
Radio waves