This straightforward apple ramp STEM problem is a superb, hands-on method to study concerning the impact of gradient on velocity and friction. We have made a friction ramp to check toy vehicles earlier than, and this apple model is a enjoyable twist for an autumn themed STEM exercise.
The ramp is roofed with bubble wrap to extend friction between the apple and the ramp floor, after which with kitchen foil to scale back the friction between the 2.
Friction is the pressure that slows objects down once they attempt to slide previous one another. When you run your hand over a easy desk, there’s not a lot friction; for those who do the identical on a carpet, there’s extra friction. The rougher the floor, the extra friction is created.
When you stroll alongside a slippery floor barefoot, it is a lot more durable to slide than for those who put on socks. There’s much less friction between socks and the ground than between uneven, and typically damp naked ft and the ground.
Apple Friction Ramp STEM Problem
A friction ramp is a ramp coated with completely different surfaces to research how the floor impacts the time it takes for a transferring object to journey down the ramp. The apple shouldn’t be pushed down the ramp with any pressure; as an alternative, it must be held on the high after which launched because the timer begins. The ramp floor is the variable, every thing else should be saved the identical.
Variable
- Ramp floor
Issues to maintain the identical
- Gradient of the ramp
- Apple
- Size and top of the ramp
You may want
- Apples
- Cease watch
- A thick sheet of cardboard about 40 cm lengthy
- Bubble wrap
- Kitchen foil
- Blocks to help the ramp
- Stopwatch or timer
Directions
Create a ramp utilizing the cardboard and blocks.
Document how lengthy the apple takes to roll down the cardboard. Repeat twice extra, so you may have three recordings.
Cowl the ramp with bubble wrap and document how lengthy it takes the apple to roll down the ramp thrice.
Take away the bubble wrap and canopy the ramp with kitchen foil, then document how lengthy it takes the apple to roll down the ramp thrice.
Extension Duties
Repeat the investigation with an extended ramp and examine the instances.
Use a ball or toy automotive as an alternative of an apple.
Experiment with completely different supplies masking the ramp.
Study friction with a teddy zip line.
Inquiries to ask
Which floor permits the apple to maneuver the quickest?
Which floor slows the apple down probably the most?
Why do you have to not push the apple?
Science Ideas
Friction
Forces and Movement
Final Up to date on November 10, 2025 by Emma Vanstone
