Y11 boron

H1 Magnets
1 (a) Attracts. 1
(b) No effect. 1
(c) Repels. 1
(d) Attracts. 1
Total 4
2 (a) Diagram should have correct ‘butterfly’ shape
with lines starting and ending on the poles and
not crossing each other. 1
(b) The lines are close together where the field
is strongest. 1
(c) (i) Arrows pointing along lines from N pole
to S pole. 1
(ii) The direction is the one along which a
compass needle points, 1
or the direction in which an isolated
N pole would move. 1
Total 4
3 Magnetic field lines between the magnets parallel
and evenly spaced. 1
Arrows point from N pole to S pole. 1
Total 2
4 (a) (i) Opposite geographic north pole. 1
(ii) Opposite magnetic north pole. 1
(b) Towards Earth’s north pole. 1
(c) (i) Bar magnet drawn inside Earth along line
joining magnetic north and south poles. 1
Field lines should have same shape as
‘butterfly’ pattern of on magnet. 1
Arrows should point from bar magnet’s N pole
(Earth’s magnetic south pole) to the bar
magnet’s S pole. 1
(ii) N pole of bar magnet near to Earth’s
south pole. 1
(iv) There is not a bar magnet inside Earth. 1
The centre of earth is very hot 1
and a magnet would melt/its magnetism
destroyed by heat. 1
Total 10