SCIENCE 6 DAY 3 PowerPoint presentation

Simple Machine (Wheel and Axle)

1. SCIENCE TIME

2. What is the person doing? When we move a really heavy load, we need to use a great deal of force. Why? How will you do to solve this problem? The wheel and the axle will solve that in a jiffy!

3. SIMPLE MACHINE (WHEEL AND AXLE)

4. WHAT IS WHEEL AND AXLE?

5. How do a wheel and axle make moving object easier? What are objects/machines have a wheel and axle?

6. Identify the given machines. In which part of the given machine contains the wheel and the axle.

7. 1. Ride a bike or a skate board. 2. In which direction are you applying an input force? 3. In which direction are you moving? Activity 1 See and feel how a wheel and axle works!

8. How door knobs work’ Observe carefully how door knobs work. What simple machine is the door knob made of? A door knob is an example of a wheel and axle. The wheel is the circle that connects the handles together. The axle is the part that goes through the door and lets the knob turn. This simple machine makes things easier to open and close. The trade-off is you don’t have to push or pull and you can just turn the handle. How to use a can opener Observe carefully at the instruction on how to use a can opener. What simple machines make up the can opener? The can opener is an example of a wedge, a screw, a lever and a wheel and axle. The wedge is on the cutter. The screw holds the can opener together. The wheel and axle is holding the cutter on. The lever is the handle. The cutter cuts the can by itself. We just need to turn the handle.

9. Look at the pictures or illustrations below. Identify whether the object is an inclined plane, wedge, lever, or wheel and axle.

10. Look at the pictures or illustrations below. Identify whether the object is an inclined plane, wedge, lever, or wheel and axle.

11. What are the practical applications of the simple machine wheel and axle? GROUP ACTIVITY

12. GROUP ACTIVITY 1. Divide the class into 3 groups.
2. I will display a picture of an object that uses a wheel and axle on the TV screen.
3. Each group will talk about:
• The name of the object
• How the wheel and axle work in that object
• Why it makes work easier
4. One member from the group will write the answers on the paper.
5. Each group will explain their answers to the class.

13. GROUP ACTIVITY

14. What are the practical applications of the simple machine wheel and axle? 1. Wheel and axle is used to pull water from well. 2. It is used in wheel of vehicles like car, bus, truck, etc. 3. Merry-go-rounds is one good example of wheel and axle. 4. If we break motors then we can see wheel and axle. Here at the wheel portion copper wire is winded. 5. Wheel and axle is also seen in door handles. Likewise there are may other applications of this simple machine.

15. What is wheel and axle? How does wheel and axle works? Give examples of machines with wheel and axle.

16. QUIZ Choose the letter of the best answer. 1. Which is an example of a wheel and example? A. hammer C. wagon B. ramp D. lamp 2. A door knob is an example of what simple machine? A. force C. work B. wheel and axle D. screw 3. Which machine turns a Ferris Wheel? A. pulley C. inclined plane B. wedge D. wheel and axle 4. What is an axle? A. The tire that fits around a wheel B. The rod around which wheels rotate C. type of inclined plane D. The rope that is strung through a pulley

17. THANK YOU