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
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
TEST YOURSELF What are the time taken for: . . . . . . . . . . . . . .
Besides time taken ticker timer is also used to determine: Velocity Acceleration Types of motion Distance HOW TO MEASURE VELOCITY? ACCELERATION?
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
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
IMPORTANT!!! *To find acceleration:  Total time = (Total parts - 1) x time of one part *To find velocity: Use a normal method without -1 !
TRY THIS!! Find : Acceleration Average speed  . .   .   . 5 cm 7 cm 6 cm
TYPE OF MOTION Distance between dot is same Object moving with constant speed . . . . . . . Direction of motion
Distance between dot is increasing Object moving faster / accelerate . . .  .  .  .  .  .  .  . Direction of motion
 
.  .  .  .  .  .  .  .  .  .  . . . Direction of motion The object is _____________________
The object is moving very _______________ …………………………………………… . Direction of motion
Ticker timer can be used to determine: (State 4!)
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?
Vibrating steel strip will vibrate _________ times in a second
Draw the diagram of ticker tape that shows the object is moving with decreasing velocity
Next Lesson  Read subtopic  INERTIA Submit your book every  THURSDAY

Ticker timer

  • 1.
  • 2.
  • 3.
  • 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
  • 14.
  • 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