SPS Interactions Ans

WS13

2) Pins A and B had become temporary magnets.

3) C has become a temporary magnet.

4) (Cross out)

5) The magnetic force is too weak to attract any more pins.

WS14

1)  He tied a string to a magnet and lower it into the fish tank to pull out the ruler.

2)  She used a magnet to attract the paper clips.

3)  He placed a magnet under the table.

4)  He would stroke the iron nail with a magnet many times in 1 direction.

5)  She wrapped the magnet with a piece of paper.

WS15

1)  The iron nail had become a temporary magnet.

4) More coils around the wire, more pins will be picked up.

5) Increase the number of batteries.