Work and Simple Machines

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Objective

I can analyze how simple machines reduce the force required to perform work by increasing the distance over which the force is applied.

Part 1 of 3

Warm-up video

Bozeman Science · 5:51Vetted channel

We don't generate video — this one is by Bozeman Science on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

9 questions

1

Define "work" in a scientific context and provide an example.

2

Explain how a simple machine can change the magnitude of a force.

Part 3 of 3

Exit ticket

Quick comprehension check

A person uses a ramp to push a 50 N box up to a height of 1 meter. If the person only needs to apply a force of 25 N to push the box up the ramp, how far must the person push the box along the ramp's surface? A lever allows a person to lift a heavy rock with only 100 N of force. If without the lever, the rock would require 400 N of force to lift, how does the distance over which the 100 N force is applied compare to the distance the rock is lifted?

Sample answer included in the free materials

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