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What do simple machines do?
How can simple machines make tasks easier?
What are effort and load?
Why do we use force multiplier
frequently?
What is the useful reason for using speed multipliers?
How can a machine change the directions in which a force acts?
How do levers make the jobs easier?
Give an example of when a lever becomes a useful material in some cases.
How can you measure how much easier a task became?
What does a machine with a mechanical advantage allow you to do?
A worker applies an effort of 100N to lift a rock of weight 300N using a wheelbarrow. Calculate the mechanical advantage of the wheelbarrow.
Why is it easier to open a tin with a longer screwdriver?
What does the principle of levers rule states about calculating mechanical advantage?
What is the formula used to calculate the mechanical advantage for a lever?
What are the three different types of levers?
What is the first-class lever?
What is second-class lever?
What is a third-class lever?
Classify the following as first, second or third class lever
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