Class notes
Lab materials
- Course
- Physics 253a
- Institution
- Southern Illinois University - Carbondale
These are lab materials for the first 3 labs- pre lab and lab reports.
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Pre-Lab 2 Questions1. Is the cart traveling at a constant speed, or is the cart gaining speed over
time? How can you tell?
The increasing line shows the cart is gaining speed over time. If it was at a constant
speed the line would be horizontal.
2. Is the cart always moving forward, or does it spend some time moving
backward? How can you tell?
The cart does not spend time moving backward, but instead decreases its speed and
then becomes constant again. The decreasing line shows the decreasing speed of the
cart.
3. What is the difference between speed and velocity?
Speed is the rate at which an object moves, while velocity is the rate and direction of an
object's movement.
4. Is the cart traveling at a constant speed, or is the cart gaining speed over
time? How can you tell?
The cart is gaining speed over time because the line is increasing.
5. Is the cart always moving forward, or does it spend some time moving
backward? How can you tell?
The cart does not move backward, it is moving at a constant speed and then decreases
speed and gets constant again.
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