Work
Potential Energy
Kinetic Energy
Mechanical Engergy/ Momentum
Miscellaneous
100
What is the formula for Work?
What is W=(F)(d)Cos(theta)
100
What is the formula for potential energy?
What is PEgrav= mgh
100
What is the kinetic energy formula?
What is KE= 1/2mv^2
100
Total mechanical energy is calculated in a system using the mathematical equation.
What is ME= PE+KE
100
Elastic force of an object is calculated using this equation
What is Fspring=kx
200
The three qualities that are shown in work
What is 1. displacement 2. force 3. cause
200
Gravitational potential energy is the energy 1)____ in an object as the result of its vertical position or 2)____
What is 1)stored & 2)height
200
Kinetic energy is the energy of 1)_______. An object that has either 2)_______ or 3)________ motion has kinetic energy.
What is 1)Motion 2) Vertical 3)Horizontal
200
Momentum is calculated in an object using the following mathematical equations
What is P=mv
200
Elastic potential energy of an object is calculated using this equation
What is PEspring= 1/2 kx^2
300
A 10 N force is applied to push a block across a friction free surface for a displacement of 20.0m to the right. Calculate the work being done by the applied force.
What is W=200 J
300
A car is pulled with a force at constant speed along an incline plane to the height of a mountain-top. If the mass of the car is 5000 kg and the height to the mountain-top is 6,800 meters, then what is the potential energy of the car at the potential energy of the car at the height of the mountain-top?
What is PEgrav= 3.4 x 10^8 J
300
Determine the kinetic energy of a 500kg roller coaster that is moving with a speed at 30m/s.
What is KE=2.25x10^5
300
Determine the momentum of a 80 kg half back moving eastward at 11m/s
What is PE=880kg*m/s
300
What are the conservation laws?
What is energy cannot be created or destroyed. It can only be transferred or converted. The sum of all the energies are the system is a constant
400
Calculate the work done by a 3 N force (directed 45 degrees to the vertical) to move a 500 gram box a horizontal distance of 50 cm. across a rough floor at a constant speed of 1.0 m/s
What is W= 15.9 J
400
A small toy car is pulled with a force at constant speed along an incline plane to the height of a chair top. If the mass of the toy car is 5 kg and the height of the chair-top is 0.55 meters, then what is the potential energy of the toy car at the height of the chair-top is the angle incline is 30 degress
What is PEgrav= 27.5 J
400
Steve the bear had a kinetic energy of 17000 J prior to hitting the water after jumping off a plane. If Steve the bear is 50kg, then what is his speed.
What is V= 26.08 m/s or 26.1 m/s
400
A pendulum with string of length 1m is raised at an angle of 30 degrees below the horizontal, as shown below, and then released. What is the velocity of the pendulum when it reaches the bottom or its swing?
What is V= 4.47 m/s or 4.5 m/s
400
What is the inelastic equation?
What is 1) MaUa+ MbUb = (ma+mb)V Where: M= Mass of the objects Va= initial velocity of objects Vb= final velocity of both objects
500
What is the conservation of momentum formula?
What is m1u1+m2u2=m1v1+m2v2 m=mass u=velocities before impact v=velocities after impact
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