work - applied force to move something over a distance., energy - the ability to do work., force - a push or pull that can make something move or stop moving., mechanical advantage - when a machine can help you do more work than you could do on your own. It's like having a tool that makes it easier to lift or move something heavy., distance - how far something has moved from its starting point., friction - when two things rub against each other and make it harder for them to move., gravity - a force that pulls objects towards each other. It's what keeps us on the ground and keeps the planets orbiting around the sun., efficiency - a measure of how well something uses energy,

Work & Energy Key Terms

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