A particle that carries a negative electric charge is called a(n) ______.

• neutron
• atom
• proton
• electron

Tags

NGSS.MS-PS2-3

Would these magnets repel or attract? 

• Repel
• Attract

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Would these magnets repel or attract? 

• Repel
• Attract

What voltage is needed to produce 2A of current through a 10Ω resistor?

• 20V
• 0.2V
• 5V
• 2V

A circuit with 3 resistors, 20 Ohms, 10 Ohms, and 20 Ohms are in series. What is the total resistance?

• 43 Ohms
• 50 Ohms
• 60 Ohms
• 33 Ohms

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

Tags

CCSS.7.NS.A.1C

What is the total effective resistance of these three resistors?

• 3 kΩ

• 5 kΩ

• 7 kΩ

• 18 kΩ

What is the current in the 1 kΩ resistors?

• 0.6 A

• 12 A

• 0.006 A

• 0.03 A

The resistance of the conductor of radius r and length L is R. What will be the resistance of the conductor if the radius is doubled and the length is doubled by 4?

• R

• 2R

• 4R

• R/4

What is the equivalent resistance between A and B points in the circuit given in the figure?

• 0

• 1 ohm

• 4 ohm

• 2 ohm