Interaction of Forces

What is the first step in the electric grid?

• Generation

• Transformation

• Motors

• Distribution

What can a transformer do?

• Increase the voltage

• Decrease the voltage

• Both of the above

• Neither of the Above

What needs to happen in a wind turbine in order to get electricity?

• Wind needs to be present

• You need a motor

• Spinning a turbine

• Water flows down

What would happen if you put a magnet next to a compass?

• Nothing

• The compass would only point west

• The compass would only point east

• The compass would point toward the magnet

How many electric grids are there in North America?

• There is only one electric grid

• There are 100 electric grids

• Electric grids are not used anymore
• There are four electric grids

Which of these did we not discuss about gaining electricity.

• Hydroelectric Power Plant

• Wind Turbine

• Solar Power

• Nuclear Power Plant

Why is it an advantage to have lots of people on the same power grid?

• Limited access to resources
• Efficient distribution and sharing of resources
• More strain on the power grid
• Increased competition and higher prices

What does a generator do?

• It spins to generate electricity

• It has electricity to create motion

• It changes the amount of voltage

• It changes the amount of transformers there are

Why can a battery change how a compass works?

• It can't

• It has a current which induces a magnetic field

• A battery makes a magnetic field

• The metal in the battery affects the compass

If there is a current of 1 amp, and a solenoid is 1 m long with 1 coil, what is the magnetic field strength?

• 4 pi x 10^-7

• 1 x 10^-7

• 4 x 10^-7

• Not enough information