Conceptual
Acceleration and Simple Calculations
Kinematic Equations
Free Fall
Random
100
List 3 vector quantities (in this unit!)
Velocity, Acceleration, displacement
100
Sammie drives his electric scooter 34 m North and then 45 m East. What is his net displacement?
56 m NE
100
Julia walks 78 meters North in 3 minutes, then turns around and walks 105 meters South in 3.5 minutes. What is her average speed? Assume North to be the positive direction.
0.47 m/s
100
What quantity is always the same for an object in free fall?
Acceleration! g=-9.8 m/s2
100
How old is Sammier?
11.5 years!
200
Which dataset has the greatest speed?
A
200
What are the two things that can occur in order for there to be an acceleration?
1. Change in direction or
2. Change in speed
200
Julia walks 78 meters North in 3 minutes, then turns around and walks 105 meters South in 3.5 minutes. What is her average velocity in m/s?
0.47 m/s
200
A rock is dropped from a bridge. What happens to the magnitude of the acceleration and the speed of the rock as it falls?
Acceleration remains the same and speed increases
200
What is Sammie's new found magic power?
Winning Buffalo Bills games when he wears his jersey!
300
What is the definition of instantaneous velocity?
The velocity at any given instant in time.
300
An object is speeding up while traveling East. What is the direction of acceleration?
East
300
A ball is thrown straight downward with a speed of 0.50 m/s from a height of 4.0 m. What is the speed of the ball 0.70 seconds after it is released? (Neglect friction).
7.4 m/s
300
An object is dropped from rest and falls freely 20 meters to Earth. When is the speed of the object 9.8 m/s?
At the end of its first second of fall
300
What will unit 7 be this year?
Modern Physics
400
A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances along it from the start, as shown in the figure. The car reaches a speed of 140km/hr as it passes marker 2. Where on the track was the car with it was traveling at half this speed (70 km/hr)?
between marker 1 and marker 2
400
The speed of an object undergoing constant acceleration increases from 8.0 m/s to 16 m/s in 10 seconds. What is the acceleration of the object?
0.8 m/s2
400
The speed of an object undergoing constant acceleration of 0.8 m/s2 increases from 8.0 m/s to 16.0 m/s in 10 seconds. How far does the object travel during the 10 seconds?
120 m
400
A 0.25-kilogram baseball is thrown upward with a speed of 30 meters per second. Neglecting friction, what is the maximum height reached by the baseball?
46 m
400
What room is Ms. Illiescu in?
Room 14