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Vocab
Which Eqauation
Circular Concepts
Projectile Concepts
Problem Solving
100
the rate that distance changes
Velocity
100
A car moving at 10 m/s speeds up uniformly to a speed of 30 m/s in a time of 5 seconds. What was the cars acceleration?
a = (Vf-Vi) / t or Vf = Vi + at
100
In what direction is the Force and Acceleration of an object traveling in a circle?
Towards the center
100
True or false: A bullet fired from a gun will hit the ground after a bullet dropped from the same height at the same time.
False
100
Billy is walking down the street whirling a yo-yo in circles. If the yo-yo spins around twice every 2 seconds, what is the period of the Yo-Yo?
1 second
200
The rate that velocity changes
acceleration
200
A rocket traveling at 88 m/s is accelerated to 132 m/s over a 15 second interval. What is its displacement in this time?
X = [(Vf + Vi) / 2] * t
200
In what direction is the velocity of an object traveling in a circle?
Tangent
200
What is the initial Vertical velocity for a projectile thrown horizontally?
Zero
200
A yo-yo whirling around with a period of 1.5 seconds on a length of string 1 meter long has a velocity of what?
4.2 m/s
300
only force acting on it is gravity
Projectile
300
To calculate the depth of a well a physics student drops a rock into the well. 4.5 s after the rock is dropped, the student sees it hit the bottom. The rock accelerates downward 9.80 m/s². How deep is the well?
Y = Vi(t) + (1/2) at^2
300
For an object moving counter-clockwise, where would it have to be released in order to knock the fat squirrel off the tree branch
B
300
What is the Vertical acceleration for a projectile?
9.8 m/s^2
300
A 2 kg ball is thrown off of a 5 meter high building, how long does it take to hit the ground?
1 second
400
A: How many revolutions in 1 sec B: How long for one revolution
Frequency: A Period: B
400
An airplane initially flying at a speed of 60.0 m/s accelerates at 5.0 m/s2 for 600 meters. What is its speed after this acceleration?
Vf^2 = Vi^2 + 2ax
400
If an object's speed remains constant while traveling in a circle, why does it accelerate?
The direction changes
400
3. Which of the following would be considered a projectile? A) an airplane flying through the air B) a bird flying around a tree C) an apple core thrown from a moving car D) a cannonball rolling down a slope
C) an apple core thrown from a moving car
400
A 2 kg flail attached to a chain with a length of 0.75 meters is swung with a velocity of 14 m/s will have a force acting on it of what?
522.67 N
500
Velocity in the direction that touches a circle at one point but does not intersect it
Tangential Velocity
500
A train can accelerate at a rate of 0.15 m/s^2. In what distance will it obtain a speed of 25 m/s if it starts from rest?
Vf^2 = Vi^2 + 2ax
500
What causes the effect known as centrifugal force?
Inertia
500
A cannon is fired horizontally off of a cliff at a velocity of 250 m/s from a height of 300 meters. How fast is the cannon ball moving horizontally when it hits the ground?
250 m/s
500
A cannon resting 100 meters up on a cliff is fired with an initial velocity of 200 m/s. How far does the cannon ball go?
903.5 meters