Question

if you are sitting in a bus that is not moving, which frame of reference might make you think the bus has started moving?
a a car in the next lane passes the bus.
b a passenger moves to the back of the bus.
c the bus driver turns to look through the windshield.
d a bird landing on the front of the bus.

Explanation:

To determine the frame of reference that makes you think the bus is moving, we analyze each option:

• Option a: If a car in the next lane passes the bus, using the car as a frame of reference, the bus appears to move backward relative to the car.
• Option b: A passenger moving within the bus doesn't affect the perception of the bus's motion relative to the outside.
• Option c: The driver's action doesn't create a frame of reference for the bus's motion.
• Option d: A bird landing on the bus doesn't give the impression the bus is moving.

So, option a is correct.

Answer:

a. A car in the next lane passes the bus.