3. Question 3 What was Einstein’s second postulate (the principle of relativity being the first)? 1 point The principle of the luminiferous ether The principle of Galileo The principle…
2. Question 2 What bothered Einstein about how physicists explained the result involving a moving magnet and a coil of wire (as he described in his June 1905 paper)? 1…
4. Question 4 Which world line represents an object that is moving with a varying velocity along the x axis? 1 point
10. Question 10 Of the world lines shown below, which represents an object moving with the highest velocity? 1 point
7. Question 7 Which of the world lines below represents everything that happens (at all locations) in a certain frame of reference at a given time t? (The arrows on…
11. Question 11 What is the inertia of an object? 1 point It is a combination of the velocity of an object and the direction it is moving. It…
2. Question 2 Consider Bob on Earth. At time t = 0, Alice flies by in her spaceship at constant velocity, heading to the right. Which diagram represents Alice’s world…
12. Question 12 Alice creates a machine that can shoot basketballs in a horizontal direction. Using a radar gun, Bob measures the speed of the basketball coming from the machine…
4. Question 4 Which world line represents an object moving to the left at constant velocity along the x axis? 1 point
1. Question 1 What is the simplest scientific meaning of the phrase “time is the fourth dimension”? 1 point That an event that occurs can be specified using a…
