Pretest - Unit 4: Electricity & Magnetism

(SPS10c) Only one setup below will light the bulb. Which setup will light the bulb? (1 pt.)

• A

• B

• C

• D

Tags

NGSS.MS-ETS1-1

(SPS10c) Two electromagnets were placed near each other. Which statement about the two magnets is true? (1 pt.)

• The electromagnets will repel each other.

• The forces of the electromagnets will be cancelled (nothing will happen).

• The electromagnets will attract.

• Electricity will flow from one electromagnet to the other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

(SPS10c) Three bar magnets are held together as you see above below. What are the magnets going to look like when they are released? (1 pt.)

• 
• 
• 
• 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

NGSS.MS-PS2-2

(SPS10) Which of the following is the correct expression of Ohm’s Law? (1 pt.)

• I = R/V

• R = P/V

• I = P/V

• I = V/R

(SPS10) Two or more of the following words and phrases mean the same thing. Identify them. (2 pts.)

• Voltage

• Wattage

• Electrical Potential Difference

• Rate at which charge flows

• Electric Pressure

(SPS10) The diagram at the right shows two identical resistors - R1 and R2 – placed in a circuit with a 12-Volt battery. If a third resistor (R3), identical to the other two, Is added to the series with the first two, then the overall resistance will ____________ and the overall current will ______________. (1 pt.)

• Increase, increase

• Increase, decrease

• Increase, remain the same

• Remain the same, decrease

• Remain the same, remain the same

Tags

NGSS.MS-PS2-3

(SPS10c) Joel inflates a balloon and ties it off. He then rubs the balloon against his hair, which makes his hair stand up. He then places the balloon near the classroom wall and sticks it to the wall. Finally, he pops the balloon with a pin.  Which of these is an example of gaining a charge by friction in this example? (1 pt.)

• Rubbing the balloon against his hair

• Placing the balloon near the classroom wall

• Touching the balloon to the classroom wall

• Popping the balloon with a pin

(SPS10b) Draw 3 light bulbs in a series circuit. Label your drawing.  (10 pts.)

(SPS10b) Draw 3 light bulbs in a parallel circuit. Label your drawing. (10 pts.)