Work
The amount of force applied over a certain distance
What is Work?
The rate at which work is done.
What is Power?
The definition of potential energy.
What is stored energy?
The definition of kinetic energy.
What is the energy of motion?
This states that energy cannot be created or destroyed, it can only be transferred or change forms.
What is the law of the conservation of energy?
The unit that Work is measured in.
What is a Joule (J)/What are Joules (J)?
How much power is being applied if you do 143 Joules of work over 4 seconds?
What is 35.75 Watts?
What is my gravitational potential energy if I have a rock that weighs 15 Newtons and I lift it 22 meters in the air?
What is 330 Joules?
If we have an object that weighs 23 kg and it is going a speed of 12 m/s, what is its kinetic energy?
What is 1656 Joules?
This type of energy increases when there is friction.
What is Thermal/Heat Energy?
The amount of work being done if you move a rock 3 meters using 6.3 N of force.
What is 18.9 Joules?
This happens to power when you increase the amount of work done.
What is increasing your power?
If you double an objects height, this happens to your Potential Energy.
What is doubling your Potential Energy?
If I double an objects velocity, I do this to my kinetic energy.
What is quadruple Kinetic Energy /KE becomes 4 times as big.
An object falls from a height (h) with 0 air resistance. The object is at one half (1/2) its original height. The potential energy lost is equal to this energy gained.
What is the Kinetic Energy gained?
What is doing more work: holding a cup of coffee that weighs 2 pounds, or lifting an empty cup that weighs 1 pound?
What is lifting an empty cup because you need movement in order for work to be done.
How much time does it take to get 11 Watts of power if you use 110 Joules of work?
What is 10 seconds?
If I have an object that weighs 120 grams, what is the potential energy if I lift it 25 meters high?
What is 29,400 Joules?
A pendulum is swinging back and forth. As the pendulum moves from its lowest point to its highest point, its energy transfers from Kinetic Energy to this type of energy.
What is Potential Energy?
As I lift an object higher I do work on the object. As I do work on the object, the objects increases this type of energy.
What is Increasing Potential Energy?
Calculate the force needed to move an object 12 meters if you are doing 96 Joules of work.
What is 8 N?
If I do 2000 Joules of work in 5 seconds, I produce this amount of power.
What is 400 watts?
As an object moves down a ramp without friction the object loses ________ energy and gains ________ energy.
What is potential and kinetic?
A hot wheels car is moving down a ramp 2 meters high, at a speed of 9 m/s. Assume it has a mass of 2 kg. What is its kinetic energy? Potential?
Potential Energy: 39.2 Joules
The equation ∆PE = ∆KE shows how energy may be converted. In the same equation
∆mgh = ∆1/2*m*v2.
What property cancels out in PE and KE?
What is mass. This means that the mass of the object does not matter when finding out how much energy is transferred from PE to KE or KE to PE.