If two charges repel each other, the two charges must be...

• positive and positive
• positive and negative
• negative and negative 
• either a or c 

Tags

NGSS.MS-PS2-3

What type of current comes from the outlets in your home?

• direct current
• alternating current
• electric discharge 
• static electricity 

Cells are made of...

• a conducting wire and a grounded wire 
• an electrolyte and a pair of electrodes 
• a conductor and a insulator 
• none of the above 

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

In order to produce a current from a cell, the electrodes of the cell must...

• have a potential difference 
• be in a liquid 
• be exposed to light 
• be at two different temperatures 

Fine the resistance of a circuit that draws 1.5A when 3.0V are applied.

• 1.5 Ohms
• 3.0 Ohms 
• 4.5 Ohms
• none of the above 

A circuit in which all parts are connected in a single loop is called a(n)...

• open circuit 
• open load 
• series circuit
• parallel circuit 

Charges continually switch from flowing in one direction to flowing in the reverse direction in...

• alternating current 
• static electricity 
• all types of current 
• direct current 

Which of the following might cause a circuit to fail?

• connecting a series circuit to a parallel circuit 
• plugging too many devices into one outlet 
• failing to press the TEST button on a circuit breaker box
• all of the above

When voltage is increased and resistance is constant, current...

• increases 
• decreases 
• is constant 
• cannot be determined 

All circuits include...

• an energy source, a load, and wires 
• an energy source, a resistor, and a battery 
• a battery, a light bulb, and a switch 
• a battery, wires and a switch