PHYS 2425 Exam 1 Study Question and answers already
passed 2025/2026
Δs distance
1. Δx displacement
2. a quantity that has both magnitude and direction (aka displacement
vectors)
3. distance / time average speed
4. displacement / time average velocity
(final position-intial position/time
elapsed)
5. Δv/Δt acceleration
6. Any measurement of position, distance, or speed must reference frame,
or frame
be made with respect to a . reference
7. While you are on a train traveling at 80 km/h, suppose a) 5 km/h
a person walks past you toward the front of the b) 85 km/h 80km/h
train at a speed of 5 km/h... + 5km/h =
85km/h
a) what is the person's speed with respect to
the train as a frame of reference?
b) what is the person's speed with respect
to the ground?
displacement
8. change in position of the object; how far the
object is from its starting point
9. A person walks 70m to the east and then turns around a) 100m
1/
11
, and walks back (west) a distance of 30m. b) 40m
2/
11
passed 2025/2026
Δs distance
1. Δx displacement
2. a quantity that has both magnitude and direction (aka displacement
vectors)
3. distance / time average speed
4. displacement / time average velocity
(final position-intial position/time
elapsed)
5. Δv/Δt acceleration
6. Any measurement of position, distance, or speed must reference frame,
or frame
be made with respect to a . reference
7. While you are on a train traveling at 80 km/h, suppose a) 5 km/h
a person walks past you toward the front of the b) 85 km/h 80km/h
train at a speed of 5 km/h... + 5km/h =
85km/h
a) what is the person's speed with respect to
the train as a frame of reference?
b) what is the person's speed with respect
to the ground?
displacement
8. change in position of the object; how far the
object is from its starting point
9. A person walks 70m to the east and then turns around a) 100m
1/
11
, and walks back (west) a distance of 30m. b) 40m
2/
11
