Projectile Motion Intro

The shape of the path a projectile follows...

• circular
• linear
• wavy
• parabolic

For a horizontal launch, the horizontal component of velocity -

• stays constant.

• increases throughout.

• decreases throughout.

For a horizontal launch, the vertical component of velocity -

• stays constant.

• increases throughout.

• decreases throughout.

Which best describes the acceleration of a projectile?

• It is changing both in magnitude and direction.

• It is changing in magnitude, but remains pointed downward.

• It is changing in direction, but has a constant magnitude.

• It has a constant magnitude and remains pointed downwards at all times.

Two balls of the same mass begin at a height of 2m. One is released from rest while the other begins with a horizontal velocity of 5m/s. Which object its the ground first?

• Ball A
• Ball B
• Both balls his the ground at the same time
• unable to determine with information given

An object is projected horizontally from a cliff.  The time it takes to hit the ground is

• more than if it was just dropped
• less than if it was just dropped
• the same amount of time than if it was just dropped
• impossible to determine

For a angled launch, the horizontal component of velocity -

• stays constant.

• increases throughout.

• decreases throughout.

For a angled launch, the vertical component of velocity -

• stays constant.

• increases throughout.

• decreases throughout.

• decreases on the way up, and increases on the way down.

TRUE or FALSE?

For a angled launch, the acceleration is equal to 0 m/s/s at the peak of the object's trajectory.

• True

• False

For a angled launch from the ground, the time an object takes to rise is -

• greater than the time to fall.

• less than the time to fall.

• equal to the time to fall.