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
Investigating horizontal projectile motion
Using only an inclined track and a screen, can you resolve horizontal projectile motion into two components and measure its initial velocity?
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One step, one new insight.
- 01
Explore the apparatus
- 02
Investigate vertical motion
- 03
The track exit must be horizontal
- 04
Mark four positions
- 05
Determine time intervals
- 06
Horizontal motion is uniform
- 07
Change release mark
- 08
Two causes of overestimation
- 09
Quiz
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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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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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