Get a Move On
I’ve Got a Problem
The Need for Speed
What am I?
Grab Bag
100
An object’s change in position compared to a reference point
What is motion?
100
Biff’s hovercraft glides down a 38 m track in 13.0 seconds. Calculate his speed.
s = d/t
s = 38m/13.0s
s = 2.923m/s
What is s = 2.9 m/s ?
100
Formula for speed
What is distance/time?
100
3.5 m
What is distance?
100
two things that one must know to find speed
What are distance and time?
200
System for specifying object’s location in space and time
What is a frame of reference?
200
Paul chased a bunny out of his mom’s garden. The bunny moved at a speed of 1.5 m/s Calculate the distance the bunny ran if Paul chased it for 45 s.
d = s x t
d = 1.5 m/s x 45s
d = 67.5 m
What is 68 m?
200
Name a unit for speed
What is m/s, mph, km/hr, ft/s?
200
9 hrs
What is time?
200
describe the movement between hours 4 and 10
What is stopped?
300
DAILY DOUBLE
To measure this, you measure the length of the path the object took
What is distance?
300
A family decided to take a road trip from Illinois to Colorado, covering 1648 mi. If they travel an average of 67.5 mph, calculate the duration of their trip.
t = d/s
t = 1648 mi/67.5 mph
t = 24.4148 hrs
What is t = 24.4 hours?
300
Speed of a object in a particular direction
What is velocity?
300
DAILY DOUBLE
5.3 km/hr west
What is velocity?
300
Which part of the journey (from or to home) took longer? Explain
What is the journey from home took four hours while the journey back took 8 hours? The graph's slope shows a faster speed from home rather than back to home.
400
Change in position of an object
What is displacement?
400
If a cruise ship was en route to Mexico from New Orleans at 23 mph and Samir walked to the rear of the ship at 4mph, calculate Samir’s resultant velocity.
What is 23mph south - 4mph north = 19mph south?
400
Can be calculated using slope of a distance/time graph
What is speed?
400
6.4 mph
What is speed?
400
formula for distance
What is speed X time?
500
Describe at least three ways to describe direction of motion
What are north, south, east, west, up, down, toward, away from, angular movement?
500
If a cheetah can move at 70.0 mph, calculate how far can it travel in 15 minutes.
15 min = .25 hour
d = s x t
d = 70.0 mph x .25 hr
d = 17.5 mi
What are 18 miles?
500
The formula for calculating velocity
What is distance/time?
500
m/s
What is speed or SI unit for speed?
500
formula for time
What is distance/speed?