Snap Circuits Lessons 1 and 2

The flow of electricity is measured in ___________.

• gallons
• minutes
• amperes
• volts

To turn on a switch, you _______ the circuit.

• voltage
• open
• pressurize
• close

Which of the following statements is false?

• Electricity is closely related to magnetism.
• Electricity is an attraction and repulsion between small particles in material.
• Electricity is stronger than gravity becuase its effects are never balanced out.
• Electricity can be created by pressure, chemistry, light, friction, and magnetism.

Which of these products is electrical but NOT electronic?

• Something using transistors and capacitors
• drill
• computer
• radio

Which of the following statments is false?

• Wire length and size never matter
• Wires are made of metals like copper
• Wires offer low resistance to the flow of electricity
• Most wires have a colored coating for protection and identification

An electrical ground is...

• the bottom point on which circuits are constructed
• the 0V or "-" side of a battery or other voltage source, sometimes connected to lightning rods
• a board used as a frame for building circuits
• All of the above

Advantages of printed ciruit boards include...

• metal strips are "printed" on the surface to make interconnections
• they are a stable platform for mounting componenets
• they allow circuits to be made smaller and less expensive
• all of the above

which of the following would all be connected in series?

• a lamp and a switch on the wall controlling it
• two lamps in a room controlled by the same switch
• two lamps in different rooms of a house
• the air conditioner and microwave oven in your home

Which of the following would all be connected in parallel?

• a lamp and a switch on the wall controlling it
• the streetlamps in your neighborhood
• a string of inexpensive Christmas lights that all go out if one bulb is loose
• None of the above

It is better to connect lamps in a parallel circuit configuration when...

• the power source can supply enough current but not enough voltage to light them all
• if one bulb burns out, you want the others to still light
• you are also adding switches to control each lamp separately
• all of the above