8/11/2019 Force Sensor Gr3

1/4Lets Go! Elementary Science 18 - 1

Activity

18Learning to Use a Force Sensor

You can use a Force Sensor to measure the strength of a push or pull. In this activity, you

will work with a Force Sensor to learn how it works.

OBJEC !"ES

In this activity, you will Learn to use the Force Sensor. Measure the changing forces as you pull and push on the Force Sensor. Match shapes using what you have learned about the Force Sensor.

#A E$!ALScomputer with Logger Lite software installed

o! Link interface"ernier #ual$%ange Force Sensor

%$OCE&U$E

%art ! Learn A'o(t t)e Force Sensor

&. Make sure the Force Sensor is plugged into the o! Link and that the o! Link isattached to the computer.

'. (he Force Sensor has a switch on it. Set the switch to the )*$ + - setting.

. Start Logger Lite on your computer. If everything is attached correctly, the L/# onthe o! Link will be green and the Logger Lite screen will display a graph, a data table,and a digital meter.

0. 1pen the file for this activity by doing the following.

a. 2lick the 1pen button, .

b. 1pen the folder called 3/lementary Science.4

c. 1pen the file called 3&5a Force Sensor.4

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Activity 18

+. #o the following to collect data using the Force Sensor6

a. Look at the computer screen and click to start data collection.

b. 7ress very softly on the hook of the Force Sensor and watch what happens on thegraph on the computer screen.

c. -ow, press hard on the hook. 8atch to see how the force that is being measured isdifferent when you press hard on the hook.

d. -ow, try pulling gently and forcefully on the hook. 8atch how the force changeswhen you push and pull on the hook.

e. 2lick to end data collection, if data collection has not ended.

9. In the 1bservations Sheet below, write what happened to the force when you pushedgently on the hook, when you pressed strongly on the hook, and when you pulled on it.

O'servations S)eet

&. 8hen I pushed gently on the hook, the force reading

'. 8hen I pressed strongly on the hook, the force reading

. 8hen I pulled on the hook, the force reading

8/11/2019 Force Sensor Gr3

3/4Lets Go! Elementary Science 18 - +

Learning to Use a Force Sensor

%art !! #a,ing Faces it) t)e Force Sensor

:. 1pen the file for this activity by doing the following6

a. 2lick the 1pen button, .b. 1pen the file called 3&5b Forced Smile.4

5. In this part of the activity, you will try to match the smile that you see on the graph.;efore you start, think about what happened when you pushed and pulled on the hookof the Force Sensor. Fill in the blanks below as a plan for matching the smile on thegraph.

First, I will not push or pull on the hook for

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Activity 18

& . 2lick , then follow the plan you wrote in Step &'.

&0. If the graph looks like a frown, congratulations! If you want to try to make the frownagain, Bust click and repeat the steps you wrote in Step &'.

ood Bob!!