Collisions Intro

What is a collision in the context of physics?

• An occurrence where an object changes its color.

• A scenario where an object changes its shape.

• An event where two objects in motion come into contact.

• A situation where two objects are at rest.

Which of the following is an example of a nearly elastic collision?

• A glass shattering on the floor.

• Two cars crashing and sticking together.

• A soccer player kicking a ball.

• A rubber band being stretched.

What is a common result of kinetic energy in inelastic collisions?

• It remains unchanged.

• It is converted into light energy.

• It is converted into sound and heat.

• It is completely conserved.

Why is it useful to approximate collisions as either elastic or inelastic?

• To make the math easier and predictions more accurate.

• To ensure no energy is lost.

• To prevent objects from sticking together.

• To increase the speed of the objects.

How do real-world collisions generally differ from theoretical models?

• They are somewhere between elastic and inelastic.

• They are always perfectly inelastic.

• They are always perfectly elastic.

• They do not involve any energy transfer.