We will describe and illustrate forces.

I will draw pictures of forces in everyday life.

8/31/2015

AgendaBell Ringer

Force PPT and Notes Assessment Questions

Ticket Out

Bell Ringer VocabularyCopy vocabulary and use 1 word in a

sentence

Motion: An object's change in position over time when compared to a reference point.

Direction: A course along which someone or something moves.

Journal Setup

Week 2 Bell Ringer

Glue Here

Force Notes 11 12

Force Force is a push or pull on an object

Forces always have a direction and an amount.

Gravity is the basic force in the universe that attracts all objects.

Journal Setup

Force Pictures

Forces in Nature Pictures

13 14

Forces in Nature: Emergence of Seedlings

Stem pushes through the seed shell and through the soil.

Draw the force of the stem.

Forces in Nature: Turgor pressure

The force of water inside the cell pushing against the cell membrane & cell wall.

High Turgor pressure (well watered plants) keeps a plant rigid (standing up)

Low Turgor Pressure (low watered plants) cause plants to droop or wilt.

Draw a picture of the force of turgor pressure acting on the cells

Forces in Nature: Geotropism

A plant’s reaction to gravity

Roots will grow in the soil.

Draw the force acting on the roots. Label it!

Sort Cards Sort the pictures based on the force that is

used.

Forces in Everyday Life Draw 2 pictures of how you use forces in

everyday life

Include arrows showing the direction of the forces and the direction the object is moving.

How do you use forces in

everyday life?

Ticket Out: Force Assessment Questions How are forces described?

Draw a pencil sitting on a desk. Label and describe the forces acting on the pencil.

If the pencil were to roll off the desk, label and describe the forces acting on the pencil.

Ticket Out :Writing about Forces Describe a force?

What happens when a force is applied ?

Explain a time when you use a force.

We will complete the measuring force activity.

I will write to explain how to measure a force. 9/1/2015

AgendaBell Ringer

How to use spring scale

Measuring Force Ticket Out

Bell Ringer

Circle the correct answer to the question. Write to

explain why the answer is correct, and why the other

answer is incorrect.

How to use a Spring Scale A spring scale measure the amount of

force on an object in NETWONS.

How to use a Spring Scale Hold the spring scale in one hand. Be sure that

you hold it high enough so you can see the arrow and the numbers clearly.

Hook the object you are weighing onto the hook that hangs down from the scale.

Look at the number where the needle stops on the dial face, that is the weight in Newton's.

Measuring Force Activity Measure the force pulling and lifting with the

spring scale for each object Book Wood Block Water Bottle

Draw a force diagram for each activity with arrows showing the direction of the force and direction the object is moving.

Answer Questions at the end

How do you use a spring

scale?

Ticket Out Write to explain how to use a spring scale

and the purpose of it.

We will evaluate situations of work.

I will draw pictures of work and not work.

AgendaBell Ringer Work Video

Work Foldable Ticket Out

9/3/2015

Bell Ringer

Draw a picture of a force in everyday life. Include arrows showing the

direction of the force and the direction the object

moves.

Journal Setup

Circle Map 15 16

Work Pictures

Work Foldable

What is work?

WORK

Share with your neighbor your examples of work?

What is Work?Work Video

1.Watch the Work video

20

What is work? In science, the word work has a different

meaning than you may be familiar with.

The scientific definition of work is: using a force to move an object a distance (when both the force and the motion of the object are in the same direction.)

21

Work or Not? According to the

scientific definition, what is work and what is not? a teacher lecturing

to her class a mouse pushing a

piece of cheese with its nose across the floor

22

Work or Not?Work or Not? According to the According to the

scientific definition, scientific definition, what is work and what is work and what is not?what is not? a teacher lecturing a teacher lecturing

to her classto her class Not Not a mouse pushing a a mouse pushing a

piece of cheese piece of cheese with its nose across with its nose across the floor the floor YesYes

23

24

What’s work? A scientist delivers a speech to an

audience of his peers. A body builder lifts 350 pounds above his

head. A mother carries her baby from room to

room. A father pushes a baby in a carriage. A woman carries a 20 kg grocery bag to

her car?

25

What’s work?What’s work? A scientist delivers a speech to an

audience of his peers. NoNo A body builder lifts 350 pounds above his

head. YesYes A mother carries her baby from room to

room. NoNo A father pushes a baby in a carriage. YesYes A woman carries a 20 km grocery bag to

her car? NoNo

Draw Work and Not work Under your circle map draw 2 pictures

Write to explain how you know your picture is work and why your other picture is not work.

Work Not Work

Ticket Out How do you know that scientific work has

been completed?

AgendaBell Ringer

Calculating Work Notes

Calculating Work Rally CoachTicket Out

9/4/2015

We will calculate work.

I will use the work formula to calculate work.

Bell Ringer

Circle the correct answer to the question. Write to explain why the answer

you chose is correct, and why the other answers are

incorrect.

29

Formula for work

Work = Force x Distance

The unit of force is newton's The unit of distance is meters The unit of work is newton-meters One newton-meter is equal to one joule So, the unit of work is a joule

30

W=FD

Work = Force x Distance

Calculate: If a man pushes a concrete block 10 meters with a force of 20 N, how much work has he done?

31

W=FDWork = Force x

Distance

Calculate: If a man pushes a concrete block 10 meters with a force of 20 N, how much work has he done? 200 joules200 joules(W = 20N x 10m)(W = 20N x 10m)

Foldable Work Question A girl uses 10 N of force to carry a bag of apples 3

m from the kitchen counter to the table. How much work does she do?

30j

Explain how to use the work formula

Calculating Work: Rally Coach

If you sit at the odd # at your table complete the odd problems (1,3,5,7,9)

If you sit at the even # at your table complete the even problems (2,4,6,8,10)

As your partner completes their problems you serve as the coach, guide them and make sure they are completing everything correctly. Explain and make corrections

Ticket Out What unit is work measured in?

Objective : I will show evidence of work by completing calculating work practice problems.

9/18/2014

AgendaBell Ringer

Calculating Work Problems

Ticket Out

Bell Ringer

Answer the questions in the Friday box on your bell

ringer.

Calculating Work Read the passage.

Answer questions 16, 17 and 18

Complete independent work problems

Work Problem Write a work calculation problem.

Make sure you are using an everyday situation of work.

Include an amount of force and the distance the object moves.

Rally Robin examples of

scientific work you could use to write

your work problem.

Ticket Out Write to explain everything you know

about forces and work, using at least 30 words.