7.4 Collisions

Front

What is a perfectly inelastic collision?

Back

A collision where two objects stick together and move with the same final velocity.

Front

What does conservation of momentum state in a collision?

Back

The initial and final momentum in a collision are the same/equal.

Front

Define energy transfer.

Back

The movement of energy from one object to another.

Front

What happens to the velocities of two objects that collide and stick together?

Back

Their velocities will decrease.

Front

What type of system allows for the transfer of matter, energy, and heat?

Back

An open system.

Front

What is an elastic collision?

Back

A collision where both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

A collision where momentum is conserved, but kinetic energy is not.

Front

What is the formula for momentum?

Back

Momentum (p) = mass (m) × velocity (v).

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion, calculated as KE = 1/2 mv².

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved; in inelastic collisions, only momentum is conserved.