Question 31
In this activity, you will change variables and describe how observations change. Work in groups of two or three.
You will need: needle or thin iron nail; bar magnet; light string or thread; paper and scissors; adhesive tape; non-magnetic bowl of water; wooden clamp stand or non-magnetic support; piece of cork or polystyrene on which the needle or nail will float.
1 Make a paper support for the bar magnet so that the magnet will hang horizontally, as shown in the diagram.
2 Use the light string to hang the magnet, in the paper support, from the wooden clamp stand as shown in the diagram. Make sure there are no other magnets or large magnetic objects close by.
3 Allow the magnet to come to rest. Record the direction the magnet is pointing.
4 Move the equipment to another part of the room. Again record the direction the magnet is pointing.
You will need: needle or thin iron nail; bar magnet; light string or thread; paper and scissors; adhesive tape; non-magnetic bowl of water; wooden clamp stand or non-magnetic support; piece of cork or polystyrene on which the needle or nail will float.
1 Make a paper support for the bar magnet so that the magnet will hang horizontally, as shown in the diagram.
2 Use the light string to hang the magnet, in the paper support, from the wooden clamp stand as shown in the diagram. Make sure there are no other magnets or large magnetic objects close by.
3 Allow the magnet to come to rest. Record the direction the magnet is pointing.
4 Move the equipment to another part of the room. Again record the direction the magnet is pointing.
