How many of these are examples of collisions, assuming they occur over a short period of time?

A giraffe chewing a leaf.

A dog scratching on the door.

A log burning.

(1 point)
Responses

None of these are examples of a collision.
None of these are examples of a collision.

A giraffe chewing a leaf.
A giraffe chewing a leaf.

A giraffe chewing a leaf.

A dog scratching on the door.

A log burning.

A giraffe chewing a leaf. A dog scratching on the door. A log burning.

A giraffe chewing a leaf.

A dog scratching on the door.

1 answer

In the context of physics, a collision generally refers to an event where two or more bodies exert forces on each other for a relatively short period of time. Therefore, we can evaluate each example listed:

  1. A giraffe chewing a leaf: This involves the giraffe's mouth and teeth acting on the leaf, creating a localized interaction, but it is not typically classified as a collision.

  2. A dog scratching on the door: This involves the dog interacting with the door. If we consider the scratching as a forceful contact between the dog's claws and the door, it could be classified as a collision.

  3. A log burning: This is a chemical reaction (combustion) happening over time and does not involve physical contact with another object in the sense of a collision.

Based on this analysis, we can conclude:

  • A dog scratching on the door is an example of a collision.

Thus, the answer to how many of the scenarios are examples of collisions is one.