Energy Flashcards
1
Q
Energy due to an object’s motion.
A
Kinetic energy
2
Q
Kinetic energy: Formula
A
KE= 1/2 mv²
Where
m is mass and v is velocity
3
Q
Energy stored in an object due to its position or arrangement.
A
Potential energy
Gravitational Potential Energy:
PE=mgh
Where m is mass, g is the acceleration due to gravity, and h is height.
4
Q
The sum of kinetic and potential energy in an object.
A
Mechanical energy
Formula: ME=KE+PE
5
Q
The work done on an object is equal to the change in its kinetic energy.
A
Work-Energy Theorem
6
Q
The rate at which work is done or energy is transferred.
A
Power
Formula: 𝑃=𝑊/𝑡
Where
W is work and t is time.
7
Q
Units of Energy
A
Joule (J): The SI unit of energy.
1 Joule = 1 Newton meter (1 J = 1 N·m)
