Practice Inertial Frames Of Reference (A.5.1) - Theme A: Space, Time, and Motion

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10 questions

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6 sample questions

Question 1.
Define an inertial frame of reference.
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Think about what happens when no external forces are acting.
Question 2.
What is time dilation?
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Consider how speed might impact time.
3Question 3.
What defines an inertial frame of reference?
- A frame accelerating with a force.
- A frame at rest or constant velocity.
- A frame rotating rapidly.
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Remember Newton's first law!
4Question 4.
True or False: Length contraction occurs at lower speeds than the speed of light.
- True
- False
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Think about when relativistic effects come into play.
Question 5.
Calculate the time dilation for a spaceship moving at 80% the speed of light for a trip of 5 years in its frame. What would a stationary observer note?
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Use the time dilation formula and remember to square the speed!
Question 6.
Two observers are moving towards each other at 70% the speed of light. Calculate their combined relativistic momentum based on an object's mass of 2 kg with respect to one observer.
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Consider the formula for relativistic momentum!

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