Ch 8 Vocab
The unit to measure power
What is watts?
Jim uses 100 N of force to push a box 2 meters in 5 seconds. What power is exerted?
40 watts
Energy used to power a light bulb.
What is electrical energy?
The energy used to drive the water cycle come from.
What is the sun?
(work output/work input) x100
What is the efficiency equation?
The unit to measure work
What is Joules?
The power to do 1000 J of work in 4 seconds.
What is 250 J of work?
Energy used to lift a book off the desk.
What is mechanical energy?
A flashlight works because it converts ______ energy to _____ energy.
What is chemical energy to electrical energy?
The rate at which work is done.
What is power?
Power relevant to 746 watts.
What is horsepower?
Work done of a 10 kg ball as it falls from a height of 200 cm.
What is 196 J?
What type of energy is collected when atoms are split?
Nuclear energy
A diagram that shows how energy reduces or increases as it changes form.
What is a Energy flow diagram?
Mrs. Luna's favorite hockey team.
Who are the Anaheim ducks and/or Seattle Krakens?
Force that causes machines to be less efficient.
What is friction?
The work output of a pully system is 200 J and the machine is 700 % efficient. What is the work input?
What is 28 J?
What is a form of chemical energy found in the body used to complete everyday tasks?
ATP
According to this law, energy cannot be created or destroyed, only transformed.
What is the Law of Conservation of Energy?
Some one who studies weather.
Meteorologist
Terms used to describe the energy of an object on the top of a hill and as it rolls down the hill.
What is potential energy and what is kinetic energy?
Jose weighs 500 N and Bella weighs 400 N. They both go up the 4 meters of stairs, but Jose reaches the top in 6 seconds and Bella reaches the top in 5 seconds. Who exerts the most power?
Jose
Sitting next to a campfire there are 2 types of energy you might experience.
What is thermal/radiant energy, and chemical energy?
Describes an object that swings back and forth showing how potential energy converts to kinetic energy as it swings.
What is a pendulum?
Mrs. Lunas favorite breakfast food.
What are Blue berry Pancakes?