DO NOW!!

AGENDA

LW#2~ Paper TowerDUE DATES:FRIDAY JANUARY 22, 2016 H.W. #2~Force Review

JANUARY 20, 2016

TAKE OUT YOUR NOTEBOOK AND TURN TO CONCEPT #3~”Unbalanced forces acting on an object affect the objects motion”

DRAW and LABEL an example of a BALANCED FORCE

DRAW and LABEL an example an UNBALANCED FORCE

UNBALANCED FORCES ACTING ON AN OBJECT AFFECT THE OBJECTS MOTION:

CONCEPT #3: FORCES

3 PROPERTIES OF

FORCES ARE:

-FORCES CAN PUSH

-FORCES CAN PULL

-FORCES CAN BE

COMBINED

BALANCED FORCE

UNBALANCED FORCE

10 N

10 N

10 NNO

CHANGE IN

MOTION

OBJECT MOVES IN DIRECTION OF LARGER

FORCE

NET FORCE = 20 N

NET FORCE=0

OR30 N30 N

10 N OBJECT MOVES IN DIRECTION OF LARGER

FORCE

NET FORCE = 40 N

2 OPTIONS

ANNOUNCEMENTS:• WEEK 1 GRADES

POSTED~PLEASE UPDATE GRAPH

• HOMEWORK #2 DUE FRIDAY• QUIZ FRIDAY~FORCES,

FRICTION, GRAVITY

LW#2 : PAPER TOWErPROBLEM: How can elements of engineering help support an understanding of science? REFLECT: With the person sitting next to you, DISCUSS how science and engineering differ from one another  

LW#2 : PAPER TOWErBACKGROUND INFORMATION: Engineering (from Latin ingenium, meaning "cleverness" and ingeniare, meaning "to contrive, devise") is the application of scientific or practical knowledge in order to invent, design and build structures. Engineers use their knowledge of science, mathematics, logic and experiences to find suitable solutions to a problem.

LW#2 : PAPER TOWER

THE RULES: The towers will be built from floor level, not on tables. The sheet of paper may be cut into pieces and reassembled as

desired. Parts may be rolled, folded or slit. Tape is to be used to fasten parts of the tower together. It MAY

NOT be used to attach the tower to the floor or any other object. Excess tape MAY NOT be used to extend the height of the tower.

The tower shall be declared free-standing if it remains self-supporting for more than 30 seconds.

Height is determined by measuring the vertical distance from the highest point of the tower to the floor (towers must still be standing when measured).

YOUR CHALLENGE:CONSTRUCT A FREE-STANDING TOWER OF MAXIMUM HEIGHT USING A SINGLE SHEET OF PAPER AND 30 cm of tape

LW#2 : PAPER TOWEr

SKYSCRAPERS:https://www.brainpop.com/technology/scienceandindustry/skyscrapers/

THE RULES: The towers will be build from floor level, not on tables. The sheet of paper may be cut into pieces and reassembled as desired. Parts may be

rolled, folded or slit. Tape is to be used to fasten parts of the tower together. It MAY NOT be used to

attach the tower to the floor or any other object. Excess tape MAY NOT be used to extend the height of the tower.

The tower shall be declared free-standing if it remains self-supporting for more than 30 seconds.

Height is determined by measuring the vertical distance from the highest point of the tower to the floor (towers must still be standing when measured).

MATERIALS NEEDED:• 1 SHEET of plain paper• 30 cm of tape• ruler & meter stick (for measuring purposes ONLY)• scissors

CONSTRUCT A FREE-STANDING TOWER OF MAXIMUM HEIGHT USING A SINGLE SHEET OF PAPER AND 30 cm of tape

YOU HAVE 30 MINUTES TO COMPLETE YOUR

TASK**HEIGHT TO BEAT = 250 cm (world record)

= 111.5 cm (LAST YEAR)