Equations/Formulas
Ug = ππβ
What is the formula for gravitational potential energy?
The ability to do work and exert force causing displacement of an object
What is Energy?
If a cart weighs .253kg and travels 1m in 2.15s with a velocity of 0.456m/s how much kinetic energy will it have? K = 1/2mv2
.027J
How did Benjamin Franklin feel when he discovered electricity?
"He was Shocked!"
m/s2
What is the unit for velocity?
g = 9.8m/s2
What is the formula for accelertation due to gravity?
The energy of an object due to its position within a force field
What is Kinetic Energy?
Bob is holding a bowling ball that weighs 3.7kg 2 meters above ground. How much gravitational potential energy does it have? Ug = ππβ
72.52J
Bob drops a tennis ball, where will potential energy be the highest when its dropped?
The top
J (Joules)
What is the unit of energy or work?
K = 1/2mv2
What is the formula for kinetic energy?
The sum of kinetic and potential energy that is stored in an object
What is Mechanical Energy?
In 40 seconds Jake drives 10 miles with a velocity of 2.5 m/s and then stops. How much gravitational potential energy does the car have? Ug = ππβ
OJ
When an object travels from the ground to a higher height, what is true about its change in gravitational potential energy?
It will be a positive change
kg
What is the unit for mass
Etotal = Ug+K
What is the formula for total energy?
The energy of an object based on its position within a gravitational field
What is Gravitational Potential Energy?
A basketball has 15J of kinetic energy when being dropped. How much potential energy does the basketball have halfway?
7.5J
The act of pushing against a wall will transfer no energy
What is a situation where work is applied but no energy is transferred?
m
What is the unit for distance?
β³Ug = Final-Initial
What is the formula for potential energy?
1.) Energy can neither be created nor destroyed
2.) Energy remains constant in the isolated system
3.) Energy can be transformed from one form to another
What does The Laws of Conservation state?
A .5kg bullet is traveling with a velocity of 90m/s. How much kinetic energy does the bullet have? K = 1/2mv2
10.125 J
The total energy of an object/system can be driven to zero if?
N
What is the unit for Newton (Force)