Work Done is there force causing motion x the distance moved.
1 of 17
What is the work done against when lifting a box ?
Gravitational Potential energy.
2 of 17
What is the final energy form after stretching a spring ?
Elastic Potential energy.
3 of 17
What is the unit for work done ?
Measured in Joules.
4 of 17
Is work in all cases the total energy ?
No work done isn't always the total energy.
5 of 17
What is the definition of a Joule ?
One Joule is the work done when a force of 1 Newton moves an object through a distance of 1 metre.
6 of 17
What is the definition of Power ?
The rate of doing work
7 of 17
What is the definition of the Watt ?
The rate of energy transferred equal to 1 Joule per second
8 of 17
What is Power measured in ?
Watts/W
9 of 17
What is Kinetic Energy ?
The energy an object has due to its movement.
10 of 17
What is the equation for Kinetic Energy ?
1/2 m v^2
11 of 17
What is Gravitational Potential Energy ?
Is the energy an object has due to its position in a gravitational field.
12 of 17
What is the equation for Gravitational Potential Energy ?
mgh
13 of 17
What is the Principle of conservation of energy ?
Energy cannot be created or destroyed. Energy can be transferred from one form to another but the total amount of energy in a closed system will not change.
14 of 17
Name the main way energy is lost in a system ?
Heat energy
15 of 17
What is the simple energy rule in a ideal system ?
Total energy in = Total energy out
16 of 17
What is Efficiency ?
Efficiency is the ratio of useful energy output to Total Energy Input.
17 of 17
Other cards in this set
Card 2
Front
What is the work done against when lifting a box ?
Back
Gravitational Potential energy.
Card 3
Front
What is the final energy form after stretching a spring ?
Comments
No comments have yet been made