7. Which type of simple machine would be found on the bottom of a wagon.
A. A pulley
B. A screw
C.A wedge
D. A wheel and axle
8. What two parts might make a pulley? A. Wheel and Axle
C. Wheel and Screw
B. Wheel and Wire
D. Wheel and Fuicrum
9. What type of simple machine is used in loading ships and heavy machinery?
A. Lever
B. Wedge
C. Pulley
D. Wheel and Axle
10. Which of the following situations shows the use of pulley?
A. Raising the flag
C. Playing the seesaw
B. Locking the door knob
D. Cutting strips of paper ​