Work
This combination of units can be used to describe work
What is Newton*meter? (Whis is also called Joules)
Power is in this unit.
What is Watts?
This is the equation for potential gravitational Energy
The total mechanical energy is the combination of these two energies
What is kinetic energy and potential energy?
Elastic Potential Energy has this unit.
What is J?
This much work is required to move a 10 N weight 5 m above the surface of the earth.
What is 50 J?
The slope of a work vs. time graph represents this.
What is power?
This is the unit for energy.
What is J?
When a pendulum is half way to the bottom in it's swing, it's total energy is made of this.
What is KE and PE?
This is the equation for Hooke's Law
What is F=kx?
This is the amount of work required to carry a text book across the room.
What is zero J?
A power vs speed graph has this type of relationship?
What is linear with a positive slope?
An object is thrown vertically straight up. The shape of the kinetic energy graph is this.
What is a linear positive slope to a linear negative slope or upside down V?
When a roller coaster is at the top of the loop, the total energy is composed of this.
What is PE and KE?
This is the formula for elastic PE
What is 1/2 kx^2?
A wall sit requires zero work because of this.
What is displacement is zero m?
A boy weighing 600 N takes 50 s to climb a flight of stairs 20 m high. This is his vertical power output
What is 240 W?
A 700N skier is standing still at the top of a mountain 3,000m high. This is it's PE.
What is 2.1 x 10^6 J?
The work done on a cart moving on surface with friction.
What is the change in KE?
Total Potential energy of a spring is the addition of this.
What is Elastic PE and Gravitational PE?
This much work is done on a downhill skier by an average braking force of 850N to stop in a distance of 10 m.
What is 8.5 x 10^3 J?
A car weighing 18,000 N requires a horizontal force of 12000N to move it down the road at 1.5 m/s. The car's engine must provide this rate of power.
What is 1.8 x 10^4 W?
This is the total energy for a .5 kg ball rolling at 5 m/s at the bottom of a ramp.
What is 6.25J?
This the total work done on a 50 g ball moving 5 m/s on floor with friction slowing it to zero velocity.
What is 0.625 J?
This is the PE of a compressed spring before it is released vertically with a spring constant of 150 newtons per meter at a height of 5m .
What is 3750 J?