1. The front wheel is larger than the rear wheel.
2. A simple machine makes work easier by changing the direction or amount of force needed.
3. Gears are special types of wheels that have interlocking teeth. When one gear turns, it causes the other gear to turn in the opposite direction.
4. The large gear has more teeth than the small gear. This means the small gear will turn faster but with less force, while the large gear turns slower but with more force.
5. The relationship between the gears is important because it allows the bicycle to move efficiently. By changing gears, you can adjust how much force is needed to pedal and how fast the bike moves.
Parent Tip: Review the logic above to help your child master the concept of simple and compound machines worksheet.