5th grade-ch. 13 lesson 1 how can you describe motion
TRANSCRIPT
Ch. 13Lesson 1
How can you describe motion?
variable
motion
moves in many directions & speeds
periodic motion
moves back & forth
ex: pendulumcircular
motion
ex: wheel
vibrational motion
ex: plucking rubber band
types of motion
vibrational motion
plucking rubber band
speed• how far object moves during certain amount of time
average speed = distance time
• The fastest land animal, the cheetah, can run 70 miles in 1 hour. – speed= 70= 70 mph 1
No Speed Limit: Introducing the Cheetah [01:09]
Calculate the speed.
• A sloth climbing 10 feet in 2 minutes
• 10 = 5 ft/min5 ft/min 2
motion•measured in relationship to point of reference
The passenger can use a tree as a reference point to decide if the
train is moving.
A tree makes a good reference point because it
is stationary from the passenger’s point of view.
velocity•speed & direction of an object’s motion
Activity-Speeding StudentsName Distance Time Speed= d
t
Mrs. Holewinski
20 m 5 sec 20 = 4 m
5 sec
Taylor (ran) 20 m 5 sec 20 = 4 m
5 sec
Zachary 20 m 4 sec 20 = 5 m
4 sec
Ryan (crab) 20 m 20 sec 20 = 1 m
20 sec
Anthony A
(cartwheeled)
20 m 17 sec 20 = 1.2 m
17 sec
Balloon Powered Race CarsMaterials:
• standard 9 inch balloon• pen barrel or straw • various materials to construct the racers
Rules:• The car must be powered by no more than 2 balloons. The balloons may only be blown up
using lung power by the car operator. No other gases, such as helium, may be used. • You can build the car out of anything, except a toy car or toy car parts. • It must have at least three wheels. Wheels are defined as anything that is round and goes
around. • The wheels can not be wheels from a toy car. They must be made out of something that was
not originally meant to be used as wheels. • The car may not leave the ground. • The car must be capable of traveling at least 5 meters. • Your car, with the completed entry form, is due on Tuessday, June 2.
Procedure:• You will use materials from home and assemble your car at home. • On race day we will set up a track in our classroom. • You will race in pairs against other classmates. • Cars that follow all of the rules will be eligible for awards. • These awards will be given in three categories. 1. Best Looking Car
2. Fastest Car (in first 5 meters) 3. Farthest Distance Traveled
Good Luck!
Driver Name Car Name Materials
Distance Traveled
(cm)Running Time
(seconds)
Jane DoePussycat Express
3 straws, balloon,
electrical tape, 4 Styrofoam lids 15.33 5.86
GRADING RUBRIC POINTS
FOLLOWED RULES ___ OUT OF 80
CAR TRAVELED AT LEAST 5 METERS
___ OUT OF 5
ENTRY FORM COMPLETED CORRECTLY
___ OUT OF 5
EFFORT ___ OUT OF 10
WON AWARD +5
TOTAL SCORE
GRADING RUBRIC POINTS
FOLLOWED RULES ___ OUT OF 80
CAR TRAVELED AT LEAST 5 METERS
___ OUT OF 5
ENTRY FORM COMPLETED CORRECTLY
___ OUT OF 5
EFFORT ___ OUT OF 10
WON AWARD +5
TOTAL SCORE
GRADING RUBRIC POINTS
FOLLOWED RULES ___ OUT OF 80
CAR TRAVELED AT LEAST 5 METERS
___ OUT OF 5
ENTRY FORM COMPLETED CORRECTLY
___ OUT OF 5
EFFORT ___ OUT OF 10
WON AWARD +5
TOTAL SCORE
GRADING RUBRIC POINTS
FOLLOWED RULES ___ OUT OF 80
CAR TRAVELED AT LEAST 5 METERS
___ OUT OF 5
ENTRY FORM COMPLETED CORRECTLY
___ OUT OF 5
EFFORT ___ OUT OF 10
WON AWARD +5
TOTAL SCORE
Driver Name Car Name MaterialsDistance Traveled
(cm)Running Time
(seconds)
Driver Name Car Name MaterialsDistance Traveled
(cm)Running Time
(seconds)
BEST LOOKING BALLOON POWERED RACE CAR
BALLOON POWERED RACE CAR
THAT TRAVELED THE
FARTHEST DISTANCE
FASTEST BALLOON POWERED RACE CAR
Activity-How can you learn about the motion of a pendulum?