2025.02

Momentum before equals momentum after: __________.

Δ(Σp) = 0.

Use the momentum version of Newton's 2nd law for force, time, velocity, mass problems: __________.

FΔt = Δ(mv).

When looking at the collision of a ping pong ball and a bowling ball, the ball with the largest magnitude change in momentum is: __________.

It depends on the balls’ initial velocities.

A 5 kg lump of clay falls to the ground where it sticks. What happened to the clay’s momentum? __________.

It was transferred to the Earth.

In ballistic motion, if acceleration is only in the vertical direction (gravity), then __________.

horizontal motion doesn’t change.

What is the result of tossing a ball horizontally off of a 5.0 m tall building at 2.5 m/s? __________.

Gravity affects the vertical motion.

For a projectile motion, the paths of objects in a gravitational field __________.

Will be a parabola.

In projectile motion, the trajectory is described as __________.

A path.

For objects in orbit, they can follow paths of __________.

Circle, ellipse, parabola, hyperbola.

Average vertical acceleration near the surface of the Earth is __________.

9.80 m/s² down.

When a golf ball is hit at an angle, its vertical velocity on the way up __________.

Gets smaller.

At the high point of its trajectory, a golf ball's direction is __________.

Straight down.

Use subscripts to keep track of different __________.

Velocities.

When discussing projectile motion, __________ is not mixed between directions.

Acceleration, velocity, and displacement.

When solving projectile motion problems, you should generally solve for __________ even if not explicitly asked.

Time.