Ticker timer
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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.
Ticker timer
- 4. Is a device used 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 between 2 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 What are the time taken for: . . . . . . . . . . . . . .
- 7. Besides time taken ticker timer is also used to determine: Velocity Acceleration Types of motion Distance HOW TO MEASURE VELOCITY? ACCELERATION?
- 8. DETERMINE VELOCITY How may 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 Determine time 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 find acceleration: 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 MOTION Distance between dot is same Object moving with constant speed . . . . . . . Direction of motion
- 13. Distance between dot is increasing Object moving faster / accelerate . . . . . . . . . . Direction of motion
- 15. . . . . . . . . . . . . . Direction of motion The object is _____________________
- 16. The object is moving very _______________ …………………………………………… . Direction of motion
- 17. Ticker timer can be used to determine: (State 4!)
- 18. In the study of 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 strip will vibrate _________ times in a second
- 20. Draw the diagram of ticker tape that shows the object is moving with decreasing velocity
- 21. Next Lesson Read subtopic INERTIA Submit your book every THURSDAY