# Ticker timer

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ticker timer & ticker tape slideshow by idrul nafiz

### Text of Ticker timer

• 1.

2. 3. 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 tickx 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 =DISTANCEUNIT??
• 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 14. 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

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