Definitions
Relative Velocity
Acceleration
Velocity/Speed
Free Fall
100
A point against which position is measured
What is: reference point
100
You are floating down a river in a canoe with your dog. Your cat is sitting at the edge of the river. Which animal are you in motion relative to?
What is the cat
100
Formula for acceleration
100
What is the formula for speed/velocity?
Velocity= Distance/Time
100
What is the formula for free fall?
Distance= (1/2) X (Acceleration) X (Time)2
Where acceleration is 9.8 meters/sec2
200
A physical measurement that contains directional information
What is: Vector quanity
200
You are floating down a river in a canoe with your dog. Your cat is sitting at the edge of the river. Which animal are you NOT in motion relative to?
What is the dog?
200
A train moves from rest to a speed of 25 m/s in 30.0 seconds. What is its acceleration?
.83 meters/sec2
200
Velocity is speed plus___?
What is direction?
200
You drop a rock from a bridge and it takes 1.2 seconds to hit the river. How many meters did the rock fall?
7.056 meters
300
A physical measurement that does not contain directional information
What is Scalar quantity
300
Two cars are traveling down a road. The first car is traveling north at 55 miles per hour, and the second is a few hundred yards behind, traveling north at 45 miles per hour. What is their relative velocity?
What is 10 miles per hour
300
A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4m/s. Three seconds later, at the bottom of the slope, its speed is 22m/s. What is its acceleration?
6meters/s2
300
What is the velocity of a car traveling 100 miles north in 2.5 hours
40 miles per hour
300
A ball is dropped from the roof of a house. If the ball takes 1.1 seconds to fall, how many feet tall is the house?
19.36 feet
400
The time rate of change of an object's velocity
What is acceleration
400
Two cars are traveling down a road. The first car is traveling north at 55 miles per hour, and the second is a few hundred yards away, traveling south at 45 miles per hour. What is their relative velocity?
What is 100 miles per hour
400
A roller coaster is moving at 25 m/s at the bottom of a hill. Three seconds later it reaches the top of the hill moving at 10 m/s. What was the acceleration of the coaster?
-5 meters/Sec2
400
What is the speed of a slug going across a 20 meter wide road in 2.21 hours
9.05 meters/hour
400
You want to find out how high a branch in your tree is. You climb up the tree and drop a rock from the branch. It takes 3 seconds for the rock to hit the ground. How high is the branch of this tree?
44.1 meters
500
The motion of an object when it is falling solely under the influence of gravity
What is freefall
500
BONUS UNIT CONVERSION PRACTICE:
What is 985 minutes in hours?
What is 16.4 hours
500
You want to buy a car that has the best acceleration. The Ford Ranger goes 0-60 in 7.34 seconds
The other truck you are looking at goes 0-100 in 12.0 seconds. Which one has the faster acceleration?
The second truck- Acceleration is 8.33
The first truck Acceleration is 8.17
500
A car is going 25 miles per hour. How long will it take the car to go 100 miles assuming no stopping or change in speed?
4 hours
500
BONUS UNIT CONVERSION
44.1meters into feet
144 feet