This is a very quick, fun activity for A2 students to attempt when learning circular motion. They should already know the equation F=mv^2/r and thus should make the connection between this equation and F=qvB. They are not given the constants; m, q & v and so they either find these themselves or you give these at your discretion.
It is a good activity for getting sixth form students to think alone or in pairs and make the connections between an equation they should know for circular motion and a new equation they are simply given if they have not already learned B-fields.
If they have seen the chapter on B-fields then simply deleting the equation at the bottom makes this activity even more challenging and brings together more than simply one chapter's worth of knowledge.
It is also a great way of getting modern Experimental Physics into the curriculum.
FYI the magnetic field strength, B should be found to be 7.2x10^-4 T.
Enjoy.
It is a good activity for getting sixth form students to think alone or in pairs and make the connections between an equation they should know for circular motion and a new equation they are simply given if they have not already learned B-fields.
If they have seen the chapter on B-fields then simply deleting the equation at the bottom makes this activity even more challenging and brings together more than simply one chapter's worth of knowledge.
It is also a great way of getting modern Experimental Physics into the curriculum.
FYI the magnetic field strength, B should be found to be 7.2x10^-4 T.
Enjoy.
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