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Physics #271
Answered
Work-Energy Theorem

How is work related to change in kinetic energy?

Physics #272
Answered
Escape Velocity

Why can’t we throw a ball into space?

Physics #273
Answered
Weightlessness

Why do astronauts feel weightless in space?

Physics #274
Answered
Black Holes

Why can’t even light escape a black hole?

Physics #275
Answered
Kepler’s Laws

Why do planets move faster when closer to the Sun?

Physics #276
Answered
Tides

How does the Moon cause ocean tides on Earth?

Physics #277
Answered
Pendulum Time Period

Why does a pendulum swing slower on the Moon?

Physics #278
Answered
Resonance

How can soldiers crossing a bridge cause it to collapse?

Physics #279
Answered
Sound Waves

Why do we hear thunder after lightning?

Physics #280
Answered
Doppler Effect

Why does an ambulance siren sound different when passing by?

Physics #281
Answered
Beats

Why do two musical notes slightly off in frequency create beats?

Physics #282
Answered
Shock Waves

What causes the sonic boom from supersonic jets?

Physics #283
Answered
Specific Heat

Why does sand heat up faster than water on beaches?

Physics #284
Answered
Heat Transfer

Why are metal utensils used for cooking?

Physics #285
Answered
Thermodynamics

Why can’t we create a perpetual motion machine?

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