Velocity
Horizontal component
Vertical component
Projectile motion
Random
100

What is the vertical velocity at the peak of a projectile's trajectory?

What is ZERO!

100
The horizontal component is independent from____________________.
What is the vertical component
100
The main factor affecting vertical velocity is ___________.
GRAVITY
100

If a tennis ball takes 4.5 sec to reach its peak, how long does it take to reach the other player?

9 seconds!

100

How much time would it take for a pencil to fall 0.98 meters?

0.45 sec

200

If a ball is thrown straight up with a velocity of 5.8 m/s, what will its velocity be as it approaches the ground?

What is 5.8 m/s

200
True/False. The horizontal velocity is affected by gravity.
FALSE
200

TRUE/FALSE. The vertical velocity is unaffected by the horizontal velocity.

TRUE

200

At what part of the projectile have minimum speed?

The top of the peak.

200

How does a significant amount of air resistance affect a projectile's motion?

it diminishes it

300

What is the magnitude of velocity called?

What is SPEED

300
If Jane can jump her unicycle 0.34 meters off her driveway from rest, how would riding down the driveway(moving) and jumping affect her height?
Not at all, her vertical is independent of her horizontal.
300

The vertical component is independent the _______________________.

the horizontal component

300

In what direction is all of the velocity at the top of a projectile's peak?

HORIZONTAL

300

What is the trajectory of a projectile called?

a parabola!

400

What factor does vertical velocity depend on?

Gravity

400
How much will the horizontal velocity change in 19.6 seconds?
None at ALL
400

Vertical velocity can be determined by multiplying the acceleration due to gravity by ________________.

the time the projectile was in the air

400
At what other angle will a thrown ball go the same distance as one thrown 20 degrees?
70 degrees
400
If a ball was tossed upward and it reached its highest point, describe its velocity as it falls back down.
It INCREASES
500

At the peak of a projectile's trajectory the velocity is both horizontal and vertical, vertical only or horizontal only?

Horizontal ONLY

500
If you were to throw a rock 4.3 m/s, horizontally, and drop another from the same height, which would hit the ground first?
Neither, they would hit the ground at the same time!
500

For an upwardly launched projectile, why does vertical velocity reach zero?

Gravitational Acceleration.

500

At what other angle will a thrown ball go straight

What is 0 degrees?

500

EXPLAIN where AND how a package dropped from a plane lands with respect to the moving plane.

The package ends up UNDER the moving plane, since its horizontal velocity remains constant.

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