Page 115 - Physics_Form_2

Magnetism

automatically by machines. These machines can 2. Cover the magnet with a
detect the magnetic field around each number on sheet of white paper and
a cheque and cheque deposit slips. Figure 3.27 trace the magnet.
shows a cheque deposit slip containing a magnetic 3. Label the north and south
field. poles as shown in Figure

FOR ONLINE READING ONLY
CHEQUE DEPOSIT SLIP/ Nakala ya kuwekea hundi 3.29.
Currency/Sarafu TZS USD GBP EUR
ACCOUNT NAME: DATE / Tarehe:
Jina la akaunti ACCOUNT NUMBER/ Nambari ya akaunti:
BRANCH:
Tawi
Cheque No: Drawn on/Imetolewa: Drawer’s Account Name: AMOUNT/Kiasi: CENTS
Nambari ya hundi Bank/Benk: Jina la Akaunti ya mtoaji S N
SPECIMEN

Amount in words/ Kiasi kwa maneno: TOTAL/Jumla: Figure 3.29
4. Sprinkle iron filings onto
Depositors name: Signature: Telephone:
Jina la mwekaji Sahihi: Simu
the paper in the area around
Magnetic ink character the outline.
Figure 3.27: Magnetic ink on a cheque deposit slip 5. Gently blow any loose
filings aside.
Activity 3.7 6. Examine the pattern

Aim: To demonstrate the existence of a formed by the filings with a
magnetic field magnifying glass as shown
in Figure 3.30.
Materials: magnifying glass, bar magnet, iron
filings, cylindrical magnet, plastic
bottle, test tube, masking tape, sheet
of paper
Procedure

Part I
1. Lay a strong bar magnet on a table as shown
in Figure 3.28.
Figure 3.30
Part II
1. Fill a plastic bottle to about
one fifth with iron filings.
2. Wrap the top part of the test
tube with masking tape so
that the tube fits tightly into
the mouth of the bottle.
3. Fit the test tube into the
Figure 3.28
mouth of the bottle and

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