Amazing Unit 3 flashcardziz

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

What happens to the total momentum of two objects that collide if they have equal mass and speed but move in opposite directions?

Back

The total momentum will be zero, as the momenta cancel each other out.

Front

What is an inelastic collision?

Back

An inelastic collision is a type of collision where the total kinetic energy is not conserved, and the objects stick together after colliding.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as the product of force and time (Impulse = Force x Time).

Front

How do you calculate the final velocity of two objects after an inelastic collision?

Back

Use the conservation of momentum: m1*v1 + m2*v2 = (m1 + m2)*v_final.

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.

Front

What is recoil in physics?

Back

Recoil is the backward movement of an object when it exerts a force, such as a cannon firing a cannonball.

Front

What is the principle of conservation of momentum?

Back

The principle states that in a closed system, the total momentum before an event (like a collision) is equal to the total momentum after the event.

Front

What is the formula for calculating momentum?

Back

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

Front

What is an explosion in physics?

Back

An explosion is a rapid increase in volume and release of energy in an extreme manner, often resulting in a forceful ejection of mass.