Work at Angles
Work
Power
Kinetic and Potential
Units
100
The equation used to solve for work done by gravity on an incline plane is...
Fxxd xx sin(theta)
100
What is the equation for Work. Be specific on the type of force.
W = F_(par) xx d
100
What is the equation for power?
P=W/t
100
What is the equation for kinetic energy?
KE = 1/2mv^2
100
What is the unit for Work?
Joules
200
The equation used to solve for work done on that is moving on flat ground is..... 
W = Fxx d xx cos(theta)
200
A crate is pushed with a force of 5N and it moves 20m in the direction of the force. How much work was done on the crate?
100J
200
Mr.O and Prince both run up a set of stairs and take the same amount of time. Mr.O produces more power so he must have a greater .......
Force of weight or mass
200
What is the equation for potential energy?
PE=mgh
200
What is the unit for Potential and Kinetic Energy?
Joules
300
A man pushes a cart with a force of 500N that makes an angle of 33 degrees from the horizontal.He moves the block 20m. How much work was done on the block?
5446.39 J
300
Student 1 carries a 10kg object up a flight of stairs in 10s. Student 2 carries the same object up the stairs in 5s. Who did more work?
Neither did more work, they both did the same amount of work
300
A boy lifts his 40N dog 1m in 1s. How much power did the boy use to lift his dog?
40 Watts
300
A bullet is fired from a gun. The bullet has a mass of 0.0065 kg and it has a speed of 760 m/s. What is the kinetic energy of the bullet?
1877.2J
300
What is unit for force?
Newtons
400
A ball is rolling down a 45 degree hill. The ball has a force of weight of 600N, and it travels 20m. How much work does the force of weight of the ball produce?
8485.28 J
400
A student pushes down on a box with 30N of force for 10 minutes. The student did _____J of work?
0
400
A truck pulls a 3000N trailer 200m in 5s. The average power of the truck was.....
120000 Watts
400
What is the potential energy of a 100kg object 6m off the ground?
6000J
400
What is the unit for speed?
m/s
500
A 60 kg boy is skiing down a 35 degree steep mountain. He slides down 200m. How normal force produced ______J of work.
0
500
A student pushes a crate with 150J but the crate only moves enough to show that 100J was used. The energy was lost to
heat / friction
500
A weightlifter picks up a barbell that is 200kg 1m of the ground in 0.5s. He produces _____ Watts of power to lift the barbell.
4000 or 3920
500
What is the speed of an object that has a kinetic energy of 200,000J and mass of 1,000kg.
20 m/s
500
What is the unit for power?
Watt