

Exploring Friction
Presentation
•
Science
•
8th Grade
•
Medium
Annie Froseth
Used 8+ times
FREE Resource
4 Slides • 21 Questions
1
Exploring Friction

2
Friction
Contact force that resists motion between two objects
Friction force is always opposite in direction
3
Types of Friction
Static - keeps objects at rest
Kinetic - opposes/slows an object when moving
4
Multiple Choice
A baseball player slides into second base. Because of ____________, he slows down.
Static Friction
Kinetic Friction
5
Multiple Choice
Rub your hands together quickly. The surfaces of your hands sliding past one another is an example of ____________
Static Friction
Kinetic Friction
Gravity
Normal Force
6
Friction force releases energy as heat
Microscopic ridges on an object's surface and acting against frictional force generates heat.
7
Open Ended
What are some other examples of ridged surfaces?
8
Multiple Choice
Which type of friction describes the friction between skiis and snow?
Gravitational Friction
Normal Friction
Static Friction
Kinetic Friction
9
Multiple Choice
Which of the following scenarios describes an example of static friction?
Leaves on trees bumping into each other
A rock sitting on the road
Walking to social studies class
Pushing your chair in at the end of class
10
Fill in the Blanks
Type answer...
11
Multiple Choice
This frog stuck on the wall judging you.
Static Friction
Gravitational Pull
Available Force
Kinetic Friction
12
Open Ended
If you could hold this frog, what do you think his feet feel might feel like?
13
Multiple Choice
What type of friction describes the lick from a cat's tongue?
Kinetic Friction
Sticky Friction
Static Friction
Kitty Friction
14
Multiple Choice
How would the addition of rollers or wheels affect friction?
Reduce it
Eliminate it
Increase it
Nothing
15
Open Ended
You have been hired to create the fastest slip-n-slide ever for the beginning of summer party. What might you do so that your classmates can go as fast as possible?
16
Multiple Choice
"Oh no, I left the pan in the sink for three weeks. I'm really going to have to push hard with my scrubber to get this food off."
Decrease Friction
Increase Friction
Eliminate Friction
There is no friction force because of water
17
Multiple Choice
"I will add WD-40 to my closet door so when the ghost opens it, it doesn't squeak and wake me up."
Decreasing Friction
Increasing Friction
18
Multiple Choice
"The last time I swung a baseball bat, it flew out of my hands and went into the stands. I should add tape to the handle."
Decreasing Friction
Eliminating Friction
Increasing Friction
Defying Gravity
19
Multiple Choice
"It is sooooo icy! Good thing my mom bought me these for my walk to school!"
I don't care if I fall and break my face, you wouldn't catch me dead wearing those
Increasing Friction
Decreasing Friction
20
Open Ended
How could you make this easier to move to the other side of the room?
21
Multiple Choice
When I replace my bald tires with new ones
Increasing Force
Decreasing Friction
Increasing Friction
Decreasing horsepower
22
Open Ended
Where is there friction occuring?
23
Open Ended
What friction keeps the truck parked on a hill from rolling away?
24
Open Ended
What is an example of kinetic friction occuring in your home?
25
Open Ended
What is an example of static friction in your home?
Exploring Friction

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