Across
- 2. An inclined plane wrapped around a central cylinder.
- 4. A rigid bar that is free to turn about a fixed point called the fulcrum.
- 5. A pulley is a grooved wheel that turns around an axle (fulcrum), and a rope or a chain is used in the grove to lift heavy objects.
Down
- 1. an inclined plane that tapers to a sharp edge. It is used to increase force.
- 3. It is a modified lever and has a wheel connected to a rigid pole.