kinetic energy (joules =1/2 mass (in kg)xspeed(in m/s)2
What is the kinetic energy equation ?
100
total amount of potential and kinetic energy
What is mechanical energy ?
100
thermal energy
friction convert mechanical energy into
100
change
Energy is the ability to cause...
100
Mechanical advantage
The ratio of the output force to the input force is the:
A. Mechanical advantage
B. Increasing efficency
C. Calculating Efficency
200
mass and speed
What does the kinetic energy of moving object depend on ?
200
mechanial energy
What does friction and air resistance cause?
200
chemical potential energy
energy stored in chemical bonds is
200
true
Trur or False: Energy can be transformed from one another to another
200
lever
A _________ is a bar that is free to pivot or turn around a fixed point
A. Lever
B. Machine
C. Pulley
D. Wheel & Axis
300
stored energy due to position
What is potential energy ?
300
is the amount work done in one second
What is power?
300
energy stored by something that can strecth or compress
What is elastic potential energy
300
Joule
What is energy measured in?
300
efficency
________ is a measure of how much much of the work put into a machine is change into useful output work by the machine
A. Efficency
B. Mechanical Advantage
C. Machine
400
that energy cannot be created or destroyed.
What does the law of conservation of energy state?
400
exerting a force with your muscles
What is work?
400
true
true of false: A rubber band or spring is an example of elastic potential energy
400
process of splitting an atomic nucleus into two or more nuclei with smaller masses
What is nuclear fission?
400
Mass x aceeleration of gravity x height
What is gravitational potential energy?
500
The strength and vitality required for sustained physical or mental activity
What is energy ?
500
true
true or false effiencey is a measure of how much of the work put into a machine
500
electrical, chemical, radiant, and thermal
What are some different forms of energy?
500
nuclear fussion
What is reaction in which two or more atomic nuclei form a nucleus with a larger mass
500
elastic, chemical, and gravitational
What are some different forms of potential energy?