Q1.
1. T
2. F
3. T
4. F
Q2.
Top row: Pulley, Lever, Wheel and Axle
Bottom row: Wedge, Inclined Plane, Screw
Q3.
a) effort force
b) resistance force
c) mechanical advantage
d) compound machine
e) effort
f) direction
Q4. a) Gears
Q5. b) Screw
Q6.
First Class: Fulcrum between Load and Force
Second Class: Load between Fulcrum and Force
Third Class: Force between Fulcrum and Load
Q7. a) gear
Q8. c) 30 N
Crossword Puzzle:
Across:
2. efficiency
6. screw
7. force
9. effort
10. wheel
13. simple
15. wedge
Down:
1. input
3. newton
4. pulley
5. compound
8. fulcrum
11. lever
12. resistance
14. inclined plane
Parent Tip: Review the logic above to help your child master the concept of simple machine worksheet for kids.