12.17

a wire coiled around an iron coil is a

• electromagnet

• magnet

• circuit

• battery

Tags

NGSS.HS-PS2-5

If I wanted to make my electromagnet stronger I need to..

• Add more coils to the iron core

• Take away coils from the iron core

• Make the coils tighter on the wire

• add a smaller wire

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

a circuit is created by what 3 factors

• battery

• wire

• current

• swittch

Which of these is the electron?

• A
• B
• C

Which of the following an insulator?

• copper
• wood
• silver
• salt water

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

When objects have equal numbers of positive and negative charges, they are

• positively charged
• negatively charged
• electrically neutral
• unbalanced

A metal rod is rubbed by a piece of wool

• Conduction

• Friction

• Induction

A metal rod is put near a neutral metal object, will the object become positively or negatively charged?

• Positive

• Negative

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5