Cuz I'm free...
free fallin'
free fallin'
This is the direction of acceleration during free fall...
Down
This is the equation for Acceleration...
Change in Velocity / Time
Speed of a car that travels 200 m in 10 seconds.
20 m/s
Acceleration is what type of quantity?
Vector
True/False: Astronauts are a few inches taller when on the moon.
True
Gravity is a ________ that always pulls us toward the surface of the Earth.
Force
A football player starts at the 50 yard line and runs to the 30 yard line in 5 seconds. What is the player's speed in yards/sec?
4 yards/sec
What is the initial speed of an object that travels 20 m in 2 seconds and has a final speed of 5 m/s?
5 m/s
What is the orientation between Velocity and Acceleration for an object that is slowing down in the negative direction.
Velocity vector points in the negative direction
Acceleration vector points in the positive direction
This current NASA project is intended to test a rocket to bring future astronauts to the moon.
The Artemis Project
This is the magnitude of acceleration due to gravity on Earth rounded to the nearest hundredth.
9.81 m/s/s
Recite the 4 variable kinematic equation for Displacement.
Delta d = Vit + 1/2 at2
Find the acceleration of an object that starts at rest and goes 30m in the negative direction for 15 seconds.
- 0.27 m/s/s
The equation of a graph that shows an object slowing down as it moves in the positive direction.
Square Root Relationship
Researchers determined that under Neptune's surface, there are such high pressures that it rains this substance?
Diamonds
On planet "Caturn", Ollie drops his box of cat nip off of his balcony and the cat nip hits the ground in 8 seconds. The velocity of the cat nip as it hits the ground is -64 m/s. What is the acceleration due to gravity?
-8 m/s/s (Will also accept 8 m/s/s)
Can you use v = d/t alone to solve for distance of an object that speeds up 50 m/s in 5 seconds? Why or why not?
No. Since the object is accelerating, it is not always moving at 50 m/s. We would have to find the average velocity in order to use this equation.
A field goal has a hangtime of 10.6 seconds. How much time does it take to reach its highest point and what is the vertical velocity at that highest point?
5.3 s
0 m/s
What happens to velocity as a ball is thrown into the air? (On the way up, At the top, On the way down)
Velocity is directed upwards but is decreasing on the way up.
Velocity is zero at the top.
Velocity is directed downwards and increasing on the way down.
How would your weight change if you stood in the center of the Earth?
Weightless as gravity is pulling from every direction.
This quantity is independent of the distance an object falls in a certain amount of time. (Hint: Aristotle was wrong!)
Mass
What equation would we use to determine displacement of an object moving with uniform acceleration starting from rest based on a velocity-time graph.
1/2 (Time) (Change in Velocity)
A cart is pushed with an initial velocity of 20 m/s along the floor. The cart accelerates at 2 m/s/s. If the cart travels 40 m in the positive direction, what was the final velocity?
23.7 m/s
An object accelerates in the positive direction from rest to 5 m/s in 5 seconds, then immediately starts accelerating in the negative direction to -5 m/s over the next 2 seconds. Is displacement positive or negative?
Positive (2.5m)
If the universe has accelerated expansion, why don't we feel anything