Dimensional Analysis and Conversions
What are the units for accelaration?
m/s2
If each component of a vector is doubled, what happens to the angle of that vector?
Nothing
A boy runs with a starting velocity of 5 m/s and has an acceleration of 0.5 m/s2. If he runs for 5 seconds, what is his final velocity?
7.5 m/s
What was the final score of the Falcons game last night?
27-23
A small cart is rolling at constant velocity on a flat track. It fires a ball straight up into the air as it moves. After it is fired, what happens to the ball?
It fall right back into the cart
Convert 40 miles per hour to meters per second.
17.9 m/s
What is a physical quantity called that has magnitude, but no direction?
Scalar
A 2‑kilogram block rests at the edge of a platform that is 10 meters above level ground. The block is launched horizontally from the edge of the platform with an initial speed of 3 meters per second. Air resistance is negligible. The time it will take for the block to reach the ground is most nearly
1.4s
What popular long running anime is known for having over 1000 episodes?
One Piece
From the same height (and at the same time), one ball is dropped and another ball is fired horizontally. Which one will hit the ground first?
Both hit at the same time
Traveling at 65 miles/hour, how many feet can you travel in 22 minutes?
125,840 feet
What is the difference between distance and displacement?
Vector vs scalar
A diver initially moving horizontally with speed v dives off the edge of a vertical cliff and lands in the water a distance d from the base of the cliff. How far from the base of the cliff would the diver have landed if the diver initially had been moving horizontally with speed 2v ?
2d
What is the first video game to star Mario?
Donkey Kong
What direction does the acceleration point in projectile motion?
Downward
Using mass (M), velocity (V), and time (T), find the dimensions for acceleration.
V1T-1M0
A boy walks to the to the end of the sidewalk using the following path: 0.500 miles west, 0.200 miles north, and 0.300 miles east. What is his total displacement?
0.28 miles, 45 degrees N of W
Ronald Acuña catches a ball at the same height above the ground from which it was hit by the batter (who is now OUT!). The ball was hit with an initial velocity of 22.0 m/s at an angle of 60.0 above the horizontal. How high did the ball rise?
18.5 m
What is the highest grossing movie of all time?
Avatar
What is the velocity of a projectile at the top of it's path?
Equal to the horizontal component of it's initial velocity
Using acceleration (A), mass (M), and time (T), find the dimensions for velocity.
A1T1M0
You will be hiking to a lake with some of your friends by following the trails indicated on a map at the trailhead. The map says that you will travel 1.6 miles directly north, then 2.2 miles in a direction 35° east of north, then finally 1.1 miles in a direction 15° north of east. At the end of this hike, how far will you be from where you started, and what direction will you be from your starting point?
4.35 miles, 58 degrees N of E
Katniss is trying to hit a target 85 meters away. The center of the target is 0.6 m above the ground. She releases the arrow 1.7 m above the ground at 65 m/s at 5° above the horizontal.
(a) How long does it take the arrow to travel the 85 meters after being released? (b) By how much is the arrow above or below the center of the target when it hits?
1.31s
11.8 cm above the center
What is the name of Yoda’s home planet?
Dagobah
When can the range equation be used?
For ground to ground projectiles