DO NOW!!

AGENDALW#1~Changing Forces

JANUARY 14, 2016

Take out your Science Notebook and turn to CW #2

Make sure ALL PARTS are complete

DUE DATES:FRIDAY JANUARY 15, 2016 H.W. #1~ Forces Vocabulary QUIZ: FORCES VOCAB

• SEMESTER GRADES POSTED• VOCABULARY QUIZ FRIDAY• HOMEWORK DUE

TOMORROW

ANNOUNCEMENTS

LW #1~CHANGING FORCESPROBLEM: HOW CAN FORCES BE COMBINED TO INCREASE AND DECREASE MOTION?

PART A:1. Use your textbook or CW# 2 to answer the following

questions in complete sentences:a) Explain how BALANCED FORCES affect motionb) Explain how UNBALANCED FORCES affect motion

PART B:COPY THE CHART BELOW (USE THE ENTIRE PAGE FOR THE CHART)

BLOCK MOVING SLOWLY

BLOCK MOVING RAPIDLY

BLOCK NOT MOVING

The Set-up1) Using the books and whiteboard,

set up a ramp that is EXACTLY 20 cm high.

2) From the bottom of the ramp, measure a distance of EXACTLY 50 cm long and mark it

YOUR CHALLENGE…• WITHOUT CHANGING THE HEIGHT

OF THE RAMP, USE ANY OF THE SUPPLIES PROVIDED TO CREATE THE FOLLOWING SITUATIONS:

YOUR CHALLENGE…• WITHOUT CHANGING THE HEIGHT

OF THE RAMP, USE ANY OF THE SUPPLIES PROVIDED TO CREATE THE FOLLOWING SITUATIONS:

1. BLOCK MOVING DOWN THE RAMP AT A SLOW PACE

YOUR CHALLENGE…• WITHOUT CHANGING THE HEIGHT

OF THE RAMP, USE ANY OF THE SUPPLIES PROVIDED TO CREATE THE FOLLOWING SITUATIONS:

2. BLOCK MOVING DOWN THE RAMP AT A RAPID PACE

YOUR CHALLENGE…• WITHOUT CHANGING THE HEIGHT

OF THE RAMP, USE ANY OF THE SUPPLIES PROVIDED TO CREATE THE FOLLOWING SITUATIONS:

3. BLOCK NOT MOVING

PART B:COPY THE CHART BELOW (USE THE ENTIRE PAGE FOR THE CHART)

BLOCK MOVING SLOWLY

BLOCK MOVING RAPIDLY

BLOCK NOT MOVING

PART B:FOR EACH SITUATION YOU MUST

BLOCK MOVING SLOWLY BLOCK MOVING RAPIDLY BLOCK NOT MOVING

a) DRAW the block and ramp

PART B:FOR EACH SITUATION YOU MUSTBLOCK MOVING SLOWLY BLOCK MOVING RAPIDLY BLOCK NOT MOVING

a) DRAW the block and ramp

b) DRAW the arrow representing ALL forces acting on the block

PART B:FOR EACH SITUATION YOU MUST

BLOCK MOVING SLOWLY

BLOCK MOVING RAPIDLY

BLOCK NOT MOVING

a) DRAW the block and ramp

b) DRAW the arrow representing ALL forces acting on the block

c) DRAW an arrow to represent the resulting forces (NET FORCE)

d) EXPLAIN what happened to cause the blocks resulting motion.

e) DETERMINE whether the forces are BALANCED or UNBALANCED

f) EXPLAIN how you know

PART B:FOR EACH SITUATION YOU MUSTBLOCK MOVING SLOWLY BLOCK MOVING

RAPIDLYBLOCK NOT MOVING

a) DRAW the block and rampb) DRAW the arrow representing

ALL forces acting on the blockc) DRAW an arrow to represent

the resulting forces (NET FORCE)

d) EXPLAIN what happened to cause the blocks resulting motion.

e) DETERMINE whether the forces are BALANCED or UNBALANCED

f) EXPLAIN how you know

5.) ANSWER THE TESTABLE QUESTION AND EXPLAIN HOW YOU KNOW