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2 cards from this section. Quick, good the night before a test.
What is the purpose of a spring balance?
Think about devices used in scientific experiments.
How does friction affect motion?
Consider how different surfaces affect sliding.
What does a spring balance measure?
Think about what happens when you pull an object.
True or False: Friction always helps in motion.
Consider how friction affects stopping a vehicle.
A toy car is sliding down a ramp made of different materials (wood, metal, carpet). Describe how you would measure the friction in each section and what results you might expect.
Reflect on the properties of each material.
Consider a scenario where you need to optimize a machine's design. How would you balance the friction needed for operation without affecting efficiency?
Think about how you can create smooth moving parts without losing grip.
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