Activity 2
Arrange the jumbled words to get the correct answer. Write your answers on a separate sheet of paper.
1. M L U C F U R – It is a fixed point found anywhere along a rigid bar. 2. C W E S R – It moves objects to a greater depth by increasing the force. 3. E M H A I C N – It is a tool or device that makes our work easier. 4. L E W E H - It is a circular disk or frame rotating on a central axis. 5. E O V M B A L – It is a pulley that is used to lift a heavy weight with less force.
6. X A L E - It is a rod on which a wheel turn.
7. M P A R – It is a tool that reduces the amount of force required to lift an object.
8. C F R O E – It makes the object move or split apart when applied. 9. X D E I F – It is a type of pulley that changes the direction of the force. 10. C N I D N L E I N P A L E - It is a sloping surface that reduces the amount of force and moves objects to a greater height.
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Activity 3
Identify what simple machine is described in each sentence. Write your answers on a separate sheet of paper.
1. It is a small wheel with a grooved rim which a rope, chair, or belt runs to lift or let down heavy weights.
2. It is a rigid bar that turns around on a fixed point and is used to push, pull, or lift objects.
3. It is used to split, cut, or divide things.
4. It is a spiral plane wrapped around an object such as a pole or a cylinder. 5. It is a simple machine made of slanted surface that is raised at one end. 6. It is used to reduce friction of moving objects.
7. It is a simple machine that is used to move objects to a greater height. 8. It is used to lift or to hold things together.
9. It is a simple machine that changes the direction of the force. 10. It applies force to the object both on its sloping sides.