Show:
Simple Machines
Energy
Work
Odds and Ends
100
When you raise or lower a flag on a flagpole, you are using a(n) _________________________
What is a pulley?
100
The ability to do work is called ________________.
What is energy?
100
Work equals force times ____________.
What is distance moved?
100
If tight scissors have an efficiency of 50 percent, half of your work is wasted due to _____________.
What is friction?
200
A ramp is an example of a simple machine called a(n) ___________.
What is an inclined plane?
200
The energy associated with motion is called _____________.
What is kinetic energy?
200
For work to be done on an object, ____________________ as a result of the force.
What is "the object must move some distance."
300
The fixed point that a lever pivots around is called the
What is a fulcrum? (A point around which all movement is occurs).
300
The process of burning a fuel is called _______________.
What is combustion?
300
In order to do work on an object, the force you exert must be _________________.
What is in the same direction as the object’s motion?
300
How would you calculate an object’s mechanical energy?
What is "add its kinetic and potential energies?"
400
Which of these could be considered an inclined plane wrapped around a cylinder?
What is a screw?
400
Unlike kinetic energy, potential energy is ___________.
What is stored?
400
The mechanical advantage of a machine is the number of times a machine increases ____________________.
What is "the force exerted on the machine?"
400
Most of the machines in your body consist of bones and muscles and are called ______________.
What are levers?
500
A machine that utilizes two or more simple machines is called a __________________.
What is a compound machine?
500
The energy associated with the motion and position of an object is ___________________.
What is mechanical energy?
500
The ideal mechanical advantage for an inclined plane is equal to the length of the incline divided by the ____________ of the inclined plane.
What is height?
500
The total potential and kinetic energy of the particles in an object is called ______________.
What is thermal energy?