POE Final Sem 1

Front

Which of the following is an inexhaustible form of energy? Biomass, Solar, Coal, Uranium

Back

Solar

Front

Which of the following is a non-renewable form of energy? Biomass, Coal, Wind, Geothermal

Back

Coal

Front

A construction worker uses a board and log as a lever to lift a heavy rock. If the input arm is 3 meters long and the output arm is 0.75 meters long, what is the mechanical advantage of the lever?

Back

4

Front

What is the difference between Ideal Mechanical Advantage and Actual Mechanical Advantage?

Back

AMA takes into account the friction acting on the object.

Front

What is the difference between calculating Power and Work?

Back

Power takes into account the time it takes to complete a task.

Front

What is the total Gear Train Ratio? Options: 1:1, .6:1, .42:1, 4:1

Back

1:1

Front

If a person lifts a 150 Newton ball 1.5m in 17 seconds, how much work did he complete?

Back

225 Joules

Front

Copper has one valence electron.  It is most likely a ___________

Back

Conductor

Front

The flow of electrical charge is measured in

Back

Amperes

Front

The resistance or opposition to electron flow is measured in

Back

Ohms