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Ticker timer
A ticker timer uses a vibrating steel strip to make dots on a tape at regular intervals, allowing the measurement of time and calculations of velocity and acceleration by analyzing the spacing of the dots. It can be used to determine velocity, acceleration, types of motion, and distance. The document provides examples of using a ticker timer to calculate these values and distinguish between different types of linear motion.
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Introduction to ticker timer used for measuring motion with a vibrating steel strip creating dots at 50Hz.
Interactive question about time taken based on ticker timer ticks data.
Ticker timer can determine velocity, acceleration, motion types, and distance measurements.
Guidelines on calculating velocity using ticks, distance, and time taken as well as avoiding common errors.
Practice exercise on finding acceleration and average speed from given measurements.
Visual cues for constant speed versus acceleration are indicated by the distance between dots.
Describing motion characteristics of an object based on dot representations and their distribution.
Functions of ticker timer in experimental setups to record trolley motion.
True/false statement about ticker timer usage and its vibrational frequency.
Tasks on creating diagrams to represent motion with decreasing velocity accurately.
Directives for next lesson on Inertia and submission reminders.
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Ticker timer
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- 4. Is a deviceused to study the motion of an object for a short period of time Vibrating steel strip will vibrate 50 times every second and make 50 dots a second on a tape being pulled through
- 5. Time interval between2 consecutive dots ( 1 tick) is 1/50s or 0.02s To calculate time: No. of tick x 0.02s . . . . 1 dot 1 tick
- 6. TEST YOURSELF Whatare the time taken for: . . . . . . . . . . . . . .
- 7. Besides time takenticker timer is also used to determine: Velocity Acceleration Types of motion Distance HOW TO MEASURE VELOCITY? ACCELERATION?
- 8. DETERMINE VELOCITY Howmay ticks that you can see? Can you calculate the time taken? What are the distance? Thus: VELOCITY = DISTANCE UNIT?? TIME TAKEN . . . . . . . . . 12cm A B
- 9. DETERMINE ACCELERATION Determinetime of 1 part Find initial velocity Find final velocity Total time = (Total parts - 1) x time of one part ACCELERATION = v-u t . . . . . . . . . . . A B C D E F 2cm 8 cm
- 10. IMPORTANT!!! *To findacceleration: Total time = (Total parts - 1) x time of one part *To find velocity: Use a normal method without -1 !
- 11. TRY THIS!! Find: Acceleration Average speed . . . . 5 cm 7 cm 6 cm
- 12. TYPE OF MOTIONDistance between dot is same Object moving with constant speed . . . . . . . Direction of motion
- 13. Distance between dotis increasing Object moving faster / accelerate . . . . . . . . . . Direction of motion
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- 15. . . . . . . . . . . . . . Direction of motion The object is _____________________
- 16. The object ismoving very _______________ …………………………………………… . Direction of motion
- 17. Ticker timer canbe used to determine: (State 4!)
- 18. In the studyof linear motion of a trolley on a runway; the time taken for the movement of the trolley is recorded by a ticker timer TRUE OR FALSE?
- 19. Vibrating steel stripwill vibrate _________ times in a second
- 20. Draw the diagramof ticker tape that shows the object is moving with decreasing velocity
- 21. Next Lesson Read subtopic INERTIA Submit your book every THURSDAY