Explanation:
We need to label each of the six simple machines shown. There are six classic simple machines:
1.
Lever – a rigid bar that pivots on a fulcrum (like a seesaw).
2.
Pulley – a wheel with a groove for a rope or cable, used to lift things.
3.
Inclined Plane – a flat surface tilted at an angle (like a ramp), used to move objects up or down more easily.
4.
Wheel and Axle – a wheel attached to a rod (axle); turning the wheel turns the axle (e.g., doorknob, wagon wheel).
5.
Screw – an inclined plane wrapped around a cylinder (like a bolt or jar lid).
6.
Wedge – two inclined planes back-to-back; used to split or hold things (like a doorstop or knife blade).
Now match each drawing:
- Top left: A board balanced on a triangle with a weight — that’s a
lever.
- Top right: A wheel with a rope and weight hanging — that’s a
pulley.
- Middle left: A block on a slanted surface — that’s an
inclined plane.
- Middle right: A large wheel with a rod through the center — that’s a
wheel and axle.
- Bottom left: A threaded metal fastener — that’s a
screw.
- Bottom right: A triangular-shaped object (like a doorstop) — that’s a
wedge.
Let’s double-check:
- Lever
✔ (fulcrum + bar)
- Pulley
✔ (wheel + rope + load)
- Inclined plane
✔ (ramp)
- Wheel and axle
✔ (wheel with central rod)
- Screw
✔ (spiral threads)
- Wedge
✔ (triangular, thick at one end)
All six match correctly.
Final Answer:
Lever, Pulley, Inclined Plane, Wheel and Axle, Screw, Wedge
Parent Tip: Review the logic above to help your child master the concept of levers simple machines worksheet.
