Work, Power, and Machines
Simple Machines
What is Energy?
Conservation of Energy
Significant Figures
100
Is defined as the transfer of energy from a force causing the object to move in the direction of the force.
What is work?
100
These are the two families of simple machines.
What is the lever family and the inclined plane family?
100
This type of energy is dependent on the mass, height, and gravity of the object.
What is gravitational potential energy?
100
Energy cannot be lost or gained, but can change this.
What is forms?
100
12
What is two?
200
This equation is used to calculate work.
What is W=Fd?
200
The lever family consists of these three simple machines.
What is the simple lever, pulley, and wheel and axle?
200
This type of energy is energy of motion.
What is kinetic energy?
200
Provide one example of something that takes advantage of the conservation of energy.
What is a rollercoaster?
200
120
What is two?
300
The units for work.
What is joules?
300
The inclined plane family consists of these three simple machines.
What is simple inclined plane, wedge, and screw?
300
This type of energy is defined as the amount of work an object can do, or the sum of kinetic and potential energy.
What is mechanical energy?
300
For energy to be conserved, the system must be this.
What is closed?
300
1,000
What is one?
400
The rate work is done at.
What is power?
400
The three components of a lever that help to classify it are these.
What is the output force, input force, and fulcrum?
400
Given that an object has a mass of 100kg and is at a height of 10m, this is the object's potential energy.
What is 9,800J?
400
If an object has an initial potential energy of 10J and falls to the ground, what is its kinetic energy as it hits the ground?
What is 10J?
400
1,000,000.00
What is nine?
500
This is the mechanical advantage equation.
What is mechanical advantage = (output force)/(input force) or =(input distance)/(output distance)?
500
These machines consist of two or more simple machines.
What are compound machines?
500
Given that an object with a mass of 10kg is moving with a speed of 10m/s, this is it's kinetic energy.
What is 1,000J?
500
This is when an object's potential energy highest.
What is at the top of it's flight?
500
0.000010000
What is five?
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