Student Exploration: Inclined Plane – Simple Machine
Prior Knowledge Questions
Jan is moving to a new apartment. She needs to load her sofa and other large furniture into a moving van. The rear of the moving van is 1.5 meters high.
1. What could Jan use to make loading furniture on the van ...
what could jan use to make loading furniture on th
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Hickory Ridge High School
SCIENCE 3510 (SCIENCE3510)
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Student Exploration: Inclined Plane – Simple Machine
Prior Knowledge Questions
Jan is moving to a new apartment. She needs to load her sofa and other large
furniture into a moving van. The rear of the moving van is 1.5 meters high.
1. What could Jan use to make loading furniture on the van easier? A tool like a
dolly, lift, lever, etc.
2. Why would this help? It would help take some of the force off of Jan.
Gizmo Warm-Up
A simple machine can be used to make tasks like lifting
heavy weights easier. One example of a simple machine
is a ramp, or inclined plane. You can use the Inclined Plane
– Simple Machine Gizmo™ to see how inclined planes can
help to lift objects.
On the CONTROLS pane, make sure the Angle is 30°, the
Coeff. of friction is 0.00, and the Weight is 300 N.
1. The brick has a weight of 300 newtons (N).
How much force would it take to lift the brick straight up? 260N
2. Set the External force to On. A car appears, ready to push on the brick. Set the
Applied force to 100 N and click Play ( ). What happens?
It slides down slower.
3. Click Reset ( ). Using the Gizmo, find the smallest force that is required
to push the block up the 30° ramp.
What is the smallest force required? 150N
Activity A: Get the Gizmo ready:
Redirection of force Turn Off the External force. Click Reset.
Set the Angle to 30° and the Weight to 300 N.
Question: How does an inclined plane redirect a force?
1. Observe: Select the FREE-BODY DIAGRAM tab. Make sure Magnitude is on. A
free-body diagram is a picture that uses vectors to show the different forces
acting on an object.
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