poe 1.1

What is the definition of "Actual Mechanical Advantage"?

• A force that produces or tends to produce rotation or torsion.

• The ratio of the magnitude of the resistance and effort forces applied to a system.

• The fixed point around which a lever rotates.

• The flow of electrical power or charge.

Which term describes the ratio of useful energy output to the total energy input?

• Efficiency

• Torque

• Fulcrum

• Friction

What is "Friction"?

• The net transfer of electric charge per unit of time.

• The resistance that one surface or object encounters when moving over another.

• Any source of energy other than fossil fuels that is used for constructive purposes.

• The ratio of distance traveled by the applied effort and resistance force within a system.

What is the "Fulcrum"?

• The fixed point around which a lever rotates.

• The flow of electrical power or charge.

• The net transfer of electric charge per unit of time.

• The ratio of useful energy output to the total energy input.

What does "Ideal Mechanical Advantage" refer to?

• The ratio of distance traveled by the applied effort and resistance force within a system.

• The resistance that one surface or object encounters when moving over another.

• Any of various elementary mechanisms including the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw.

• A force that produces or tends to produce rotation or torsion.

What is a "Simple Machine"?

• Any of various elementary mechanisms including the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw.

• The net transfer of electric charge per unit of time.

• The flow of electrical power or charge.

• The ratio of useful energy output to the total energy input.

What is "Torque"?

• The flow of electrical power or charge.

• A force that produces or tends to produce rotation or torsion.

• The resistance that one surface or object encounters when moving over another.

• The fixed point around which a lever rotates.

What is "Alternative energy"?

• Any source of energy other than fossil fuels that is used for constructive purposes.

• The net transfer of electric charge per unit of time.

• The flow of electrical power or charge.

• The resistance that one surface or object encounters when moving over another.

What is "Current"?

• The net transfer of electric charge per unit of time.

• The flow of electrical power or charge.

• The fixed point around which a lever rotates.

• The ratio of useful energy output to the total energy input.

What is "Electricity"?

• The flow of electrical power or charge.

• The net transfer of electric charge per unit of time.

• The resistance that one surface or object encounters when moving over another.

• The ratio of distance traveled by the applied effort and resistance force within a system.