Wheels and Axles
Grade 2 · Science · Simple Machines · South Carolina, USA
Lesson Summary
A wheel and axle is a wheel attached to a rod (axle) that helps things roll and move easily.
Explanation
A wheel and axle is made up of a round wheel attached to a rod called an axle. When the wheel turns, the axle turns too, and this makes moving things much easier than dragging them. Think of a wagon — the wheels let you pull heavy things without as much effort. Other examples include doorknobs, bicycle wheels, and rolling pins. Without wheels and axles, moving heavy loads would be very hard!
Practice Questions
Q1: What is an axle?
Answer: A rod or bar that goes through the center of a wheel.
Q2: Name two things that use a wheel and axle.
Answer: Answers will vary. Examples: a bicycle, a wagon, a car, a doorknob, a rolling pin.
Q3: How does a wheel and axle make work easier?
Answer: It reduces friction and lets you roll things instead of dragging them.
People Also Ask
What is Wheels and Axles in Grade 2 Science?+
Wheels and Axles is a lesson in the Simple Machines chapter of Grade 2 Science. It is part of the South Carolina, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Wheels and Axles?+
Wheels and Axles is taught in Grade 2 as part of the Science curriculum in South Carolina, 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.