Name ________________________ Date __________

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Notes for Home Your child has learned about the effects of inertia, gravity, and friction on motion.Home Activity: Discuss how inertia, gravity, and friction affect a recreational or work related activity you pursue.

InteractiveTransparency

Use with Unit B, Chapter 2.

6

Forces and Motion

Write about how Car 1 is affectedby inertia.

Write about how Car 2 is affectedby gravity.

Write about how Car 3 is affectedby friction.

Imagine you are test-driving this new car. Explain how the car’s motion is affected by different forces.

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Inertia, gravity, friction, and other forcesaffect the speed and velocity of an object.

q Make a copy of the transparency for eachstudent. Let students use their own copy asthe lesson develops.

w Cover all the images on the transparencyexcept the car going up a parking ramp.Discuss how car 1 will be affected by gravityand friction while going up the ramp.

e Focus on the image of car 2 comingdown a hairpin curve. Discuss how the car isaffected by inertia and friction.

r Emphasize the effect of the gravel roadon car 3. Discuss how car 3 is affected byinertia and gravity.

t Have students, working individually,write about how car 1 is affected by inertia;car 2 by gravity; car 3 by friction.

y Discuss students’ responses.

inertia speed gravityfriction weather

Hands-On ActivityTo prepare students for the Test Driveactivity, have them use a book as anincline and roll three common objectsdown the incline. Objects could include arumpled ball of paper, a paper clip, apencil, and an eraser. Before they roll anobject down the incline have them predictwhich will be fast, faster, and fastestamong the three objects they use.

Have them compare reality with theirexpectations and note any surprises. Askthem to account for differences in speed.

Then ask students to vary the incline of thebooks they use as a ramp. Encourage themto speculate on how the degree of theangle will affect the motion of the object.

ESL/ELD

Big Idea Teach and Apply

Unit B Physical Science Chapter 2 Investigating Motion

Using Interactive Transparency 6

Glossary

Organize students into small groups. Each student should share an experienceof a fall from something with wheels suchas a bike, roller blades, etc. Ask them todescribe the fall and what they thinkcaused them to fall. Suggest that speed,unseen objects on the path, inexperience,or faulty equipment might havecontributed to the fall.

Cooperative Learning

Forces and Motion InteractiveTransparency

Use with Unit B, Chapter 2.

6

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Name ________________________ Date __________

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an5

Notes for Home Your child has learned about the effects of inertia, gravity, and friction on motion.Home Activity: Discuss how inertia, gravity, and friction affect a recreational or work related activity you pursue.

InteractiveTransparency

Use with Unit B, Chapter 2.

6

Forces and Motion

Write about how Car 1 is affectedby inertia.

Write about how Car 2 is affectedby gravity.

Write about how Car 3 is affectedby friction.

Imagine you are test-driving this new car. Explain how the car’s motion is affected by different forces.

wUncover the car going up theparking ramp.Discuss theeffects of gravityand friction oncar 1.

eUncover theimage of the carcoming downthe curve anddiscuss theeffects of inertiaand friction oncar 2.

uCompile a chart orgraph to representstudent analysis.

qGive a copy ofthe transparencyto each student.

Answers will vary.

rUncover therural road sceneand discuss howcar 3 which istraveling on agravel road,would beaffected byinertia andgravity.

tHave studentsexplain in writinghow car 1 wouldbe affected byinertia; car 2 bygravity; car 3 byfriction.