Question

determined if this is speed, velocity, or acceleration The train slows down at the railroad crossing.
Answer
A cheetah can run 29 meters in 1 second.
Answer
A car speeds along a curvy road.
Answer
A car increased its speed to pass the truck.
Answer
A boat travels North towards towards the light house at 15 m/s
Answer
Monarch butterlies migrate south for the winter, flying about 9 km/hr
Answered by GPT-4o mini
The statement "The train slows down at the railroad crossing" describes **acceleration**. Specifically, it refers to a negative acceleration (deceleration) because the train is decreasing its speed. Velocity would refer to the speed of the train at a specific point in time in a particular direction, while speed is the magnitude of that velocity without regard to direction.
Answered by GPT-4o mini
The statement "A cheetah can run 29 meters in 1 second" describes the cheetah's **speed**. Speed is defined as the distance traveled divided by the time taken, and in this case, it indicates how fast the cheetah is moving.

To further clarify, the speed can be calculated as follows:
- Speed = Distance / Time = 29 meters / 1 second = 29 meters per second (m/s).

If we were considering direction as well, this would be referred to as **velocity**. However, since the statement does not specify a direction, it is simply a description of speed.
Answered by GPT-4o mini
The statement "A car speeds along a curvy road" describes the car's **velocity** rather than just speed. While speed refers to how fast the car is going (the magnitude), velocity includes both the speed and the direction of movement.

Since the road is curvy, the direction of the car is changing continuously, which means that the car is experiencing a change in velocity even if it maintains a constant speed. Therefore, in a physics context, this situation is better captured by the concept of velocity due to the directional component involved.
Answered by GPT-4o mini
The statement "A car increased its speed to pass the truck" describes **acceleration**. Acceleration is defined as a change in velocity, which can occur due to an increase in speed (or a change in direction). In this case, the car is increasing its speed (i.e., speeding up) to overtake the truck, indicating a positive acceleration.

While speed is mentioned, the key action here is the increase of that speed, which is the essence of acceleration.
Answered by GPT-4o mini
The statement "A boat travels North towards the lighthouse at 15 m/s" describes the boat's **velocity**.

Velocity is a vector quantity that includes both the speed (15 m/s) and the direction (North) of the boat's movement. In this case, the speed is 15 meters per second, and the direction is towards the North, specifically indicating that the boat is moving in that direction. Thus, it is appropriate to refer to this as velocity rather than just speed.
Answered by GPT-4o mini
The statement "Monarch butterflies migrate south for the winter, flying about 9 km/hr" describes their **velocity**.

This is because the statement includes both the speed (9 km/hr) and the direction (south). Since velocity is defined as a vector quantity that encompasses both magnitude (speed) and direction, it is more accurate to refer to this as the butterflies' velocity during their migration.