Kinetic Energy
The energy of motion
What is Kinetic Energy?
stored energy
What is potential energy?
The ability to do work
What is energy?
What does AMA and IMA represent?
What is actual mechanical advantage and a ideal mechanical advantage
Kinetic energy is measured in (what units)
What is Joules?
Name two types of potential energy
What is GPE and EPE?
Energy stored by things that stretch
What is Elastic Potential Energy?
Name 3 types of simple machines
What is incline plane, lever, wedge, screw, wheel & axel, or pulley?
The kinetic energy formula
KE=0.5mv2
What happens to potential energy once an object starts moving?
What is converted to kinetic energy?
Energy stored by things above Earth
What is Gravitational Potential Energy?
If a simple machine is 82% efficient, what does that mean
That means 82% of the energy is converted to work/KE
What is an example of kinetic energy at work?
A. A ball lodged in a tree
B. A frisbee flying through the air
C. A car in the garage
What is
B. A frisbee flying through the air?
What plays a major role in Gravitational Potential Energy
What is mass, gravity or height?
How “helpful” the machine is. This number represents how many times the effort force is magnified by the machine.
Mechanical Advantage
Fill in the blank:
When a machine is less than 100% efficient, some mechanical energy was converted to __________
What is heat?
Rearrange the equation for kinetic energy to make velocity the subject of the equation
What is v = √(KE/0.5m)?
What must be necessary to solve for Elastic Potential Energy
What is a spring or an elastic?
The Law of conservation of energy is
What is Energy cannot be created or destroyed; it may be transformed from one form to another, but the total amount of energy never changes?
1000 J of energy is input into a simple machine. The machine is 70% efficient.
How many joules of energy is transferred through the machine to do work?
What is 700J?