1. A fixed pulley is a machine that increases the effort force.
True
False


2. A movable pulley is fixed at all points.
True
False


3. A block and tackle consists of both movable and fixed pulleys.
True
False


4. A lever is a bar that can pivot on a fixed point.
True
False


5. A wedge is a machine that changes the direction of the force.
True
False