Work Flashcards
1
Q
What is the 1st Law of Thermodynamics?
A
Energy cannot be created or destroyed, just converted between different forms.
2
Q
How is energy expressed?
A
Joules
3
Q
Define Joule
A
The energy required to apply a force of 1 newton over a distance of 1m
4
Q
Define Work
A
A force acting upon an object to cause a displacement
5
Q
Define displacement
A
The distance related to the straight line change in position from start to end position.
6
Q
What is the formula for work?
A
force (N) x Distance (M)
7
Q
Define power?
A
The rate at which work is done.
8
Q
How do you calculate power?
A
Work/time
9
Q
What is power measured in?
A
Watt or joules per second
10
Q
What does power give us?
A
The intensity of exercise
