Question

Anyone that was in Physical Science that has done the Investigating the Properties of Alpha and Beta Portfolio?

Answer 1

5. Click once above the tens place on the Electric Field meter. Observe the spot.
Click a second time above the tens place on the Electric Field.
What happens to the spot from the electron gun on the phosphor screen?
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6. Zero out the Magnetic Field and Electric Field meters by clicking on the
appropriate digit buttons until the spot on the phosphor screen is centered
again.

7. Double-click or click and drag the electron gun to move it to the Stockroom counter. Enter the Stockroom by clicking inside the Stockroom. Double-click
the electron gun to move it back to the shelf. Double-click on the alpha
source to select it and move it to the Stockroom counter. Click on the green
Return to Lab arrow to return to the lab. Drag the alpha source from the
Stockroom counter and place it on the table where the electron gun was
originally placed (the middle spot light). Click on the front of the alpha
source to open the shutter.
What appears on the phosphor screen?
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8. Change the unit for the Magnetic Field from µT to mT by clicking once above
the unit. Click above the hundreds place three times to set the Magnetic Field
to 300 mT (millitesla). This magnetic field is one million times stronger than
what we used for the electron gun.
Which direction is the spot deflected when the magnetic field is increased
this time?
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How does this compare with the direction of movement when the magnetic
field was turned on for the electrons?
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9. Change the unit for the Electric Field from V to kV by clicking once above the
unit. Observe the spot as you increase the Electric Fieldstrength from 0 kV to
5 kV. The movement is slight so pay careful attention. How does this compare with the direction of movement for the electron beam in the Electric Field?

Why does it take significantly stronger magnetic and electric
field strengths to move the beam of alpha particles compared with the beam of
electrons (beta particles)?