Photoelectric effect
Why can the same light beam eject electrons from one metal but none from another? Which properties of the light determine the photoelectrons' energy?
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PHYSICS · 9 EXPLORATION STEPS
Charging and discharging a capacitor
What does a capacitor actually store? Can a single quantity describe its ability to store charge?
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▶ Open 3D simulationYOUR EXPLORATION
One step, one new insight.
- 01
Explore the apparatus
- 02
Switch to 1 to charge
- 03
Switch to 2 to discharge
- 04
Infer charge from area
- 05
Two circuit arrangements
- 06
Record q–u data
- 07
Change C and R
- 08
Real instruments
- 09
Assessment
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The relationship between acceleration, force and mass
Without measuring force or acceleration directly, can a paper tape and a few masses reveal the relationship between a, F and m?
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Verifying conservation of mechanical energy
As a mass falls, is all the decrease in gravitational potential energy converted into an increase in kinetic energy? Can paper tape help measure and test this?
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