Pulleys
Grade 2 · Science · Simple Machines · Massachusetts, USA
Lesson Summary
A pulley is a wheel with a rope around it that helps you lift heavy things.
Explanation
A pulley is a simple machine made of a wheel with a groove around the edge and a rope that fits in the groove. When you pull down on one end of the rope, the other end goes up, lifting a heavy load. Pulleys are used on flagpoles to raise and lower flags, on cranes at construction sites, and on window blinds. Some pulleys even change the direction of the force, so you can pull down to lift something up!
Practice Questions
Q1: What two parts make up a pulley?
Answer: A wheel with a groove and a rope.
Q2: Where might you see a pulley being used?
Answer: Answers will vary. Examples: a flagpole, a crane, window blinds, a well bucket.
Q3: How does a pulley help you lift something?
Answer: You pull down on one end of the rope, and the other end lifts the heavy object up.
People Also Ask
What is Pulleys in Grade 2 Science?+
Pulleys is a lesson in the Simple Machines chapter of Grade 2 Science. It is part of the Massachusetts, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Pulleys?+
Pulleys is taught in Grade 2 as part of the Science curriculum in Massachusetts, USA.
How can I help my child with Simple Machines in Science?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Simple Machines topics.