Werk Werk Werk Werk Werk
If Work is calculated by Force x Distance then what are the units of Work?
What is Newton-meters or Joules
"No one man should have all that ______"
-Kanye
What is Power
Potential Energy is related to an object's height. True or False?
What is true
Kinetic Energy is also known as mechanical energy or energy of motion. True or False?
What is true
The law of conservation of energy states:
a. An object’s energy remains constant.
b. Energy should not be wasted.
c. The total energy in a system remains constant.
d. Energy cannot be added to a system.
What is C. The total energy in a system remains constant
The equation for Work
What is Fd
Power= Work/???
What is time
PE= m?h
What is g or gravity?
What is the coefficient in front of the KE equation? (hint: ?mv^2)
What is 1/2
A 5kg stone is thrown by Jahda straight upwards with 196 J of kinetic energy. What maximum height will it reach?
What is 4m
If 100N is applied to Tyler who travels 36m, how much Work was done on Tyler?
3600J
Work/time in units is...?
What is Joules/Seconds
If Alize's bowling ball has a mass of 10kg and starts at the top of a hill 7m high (consider gravity as 10m/s^2) what is the bowling ball's potential energy?
What is 700J
Tay is driving her Ferrari at 50m/s and the entire system weighs 40kg. What is the Kinetic Energy of Tay's system?
What is 100,000J
A daredevil wants to jump a child’s wagon over a river. He calculates that he needs to hit the jump with a velocity of 18 m/s in order to clear the river. What minimum height of ramp in front of the jump will allow him to clear the river?
16.5m
Eric moves a box horizontally across the floor with a force of 16.7N for 22.9m. What is the amount of Work done by gravity?
What is 0J
If De'Vaungh puts 30J of Work into his skateboard for 5 seconds, what is the Power entering the skateboard's system?
What is 6J/s
If 500J of Kinetic Energy in Quadri's airplane is transferred into Potential energy and his airplane is 5 meters in the air, what is the mass of the airplane? (hint: gravity is rounded to 10m/s^2)
What is 10kg
An applied force accelerates Samiyah from rest along a frictionless surface. Compared to the amount of work done by the force, the final kinetic energy of Samiyah is:
1.Larger
2. Smaller
3. The same
What is 3. The same
Donte pulls a 375 kg crate a distance of 17.5 m using a force of 550 N. How much work is done by Donte?
What is 9625J
Is Work a scalar or vector quantity?
(hint: what is in the Work equation)
What is a Vector
Which system has the greatest Power?
1. 5000J for 10s
2. 5000J for 5s
3. 2000J for 20s
What is 2. 5000J for 5s
Simire drops a 10kg burrito out of a window on the fourth floor that is 8m off the ground. What will be the burrito's velocity before it hits the ground? (hint: set up equations for PE then KE)
What is 40m/s
If Carizma is traveling at 6m/s from a height of 2m on the moon, find the value of the moon's gravity. (hint: PE=KE)
What is 9m/s^2
A 0.6 kg Tarp begins from rest and is pushed to the right by a 17 N force over a distance of 1.25m. If the friction force does 3 J of work on Tarp, what will his final kinetic energy be?
What is 18.25J