Category 2: Electricity, Sound, and Light 2

In which circuits will the bulb be lit?

• (a)

• (b)

• (c)

• (d)

• (f)

Would would best complete this circuit?

• 
• 
• 
• 

Organize these options into the right categories

Groups:

(a) Conductors

,

(b) Insulators

,

(c) Semiconductor(s)

• 
• 
• 
• 
• 
• 
• 
• 

Tags

NGSS.MS-PS1-3

When a balloon is charged by rubbing it with a cloth bits of paper become attracted to the balloon. This is because of-

• repelling

• static electricity

• magnetism

• electromagnets

Tags

NGSS.MS-PS2-3

This balloon has been rubbed against a child's hair as shown.

If the balloon has a negative charge, the hair must have what charge?

• negative

• positive

• neutral

• magnetic

Tags

NGSS.MS-PS2-3

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric
• electric, wire, iron
• iron, electric, wire
• excited, hair, apple

Students in Mrs. Ward's class made this electromagnet.

Which TWO changes will most likely increase the strength of a magnetic field produced by an electromagnet?

• Reduce the number of turns in the coil.

• Switch the direction in which the battery is connected.

• Remove the iron nail.

• Add a larger battery.

• Increase the number of turns in the coil.

Tags

NGSS.MS-PS2-3

Nina made the circuit shown here in his science class. When she closes the circuit, describe the energy transformations that occur in the circuit, starting with the battery.

• Chemical energy to Electrical energy to Sound energy.

• Chemical energy to Electrical energy to Thermal energy.

• Electrical energy to thermal energy to Sound energy.

• Sound energy to Radiant energy to Chemical energy.

The model shows how different circuits transform energy.

Identify how the circuits transform energy by completing the chart below.

Groups:

(a) Chemical to Electrical to Mechanical

,

(b) Chemical to Electrical to Radiant

,

(c) Solar to Electrical to Mechanical

,

(d) Chemical to Electrical to Sound & Mech.

• Light

• Buzzer/ Motor

• Fan

• Solar Car

Match the correct type of pitch with each instrument.

c

b

a

medium pitch

lowest pitch

highest pitch

Tags

NGSS.MS-PS4-2