6.2 – Determining Acceleration Due to Gravity (Leaving Cert Physics): Quizzes

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6.2 – Determining Acceleration Due to Gravity
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What does this experiment determine using a free-fall apparatus and scaler timer?

Acceleration due to gravity

Which formula is used to calculate gg from the measurements?

g=2s/t2g = 2s/t^2

What is the accepted value for acceleration due to gravity?

9.8 m s⁻¹

Which timer is used in this experiment?

Scaler timer

What position should the switch be in when setting up with the electromagnet holding the ball?

Position A

Where is distance ss measured from and to?

Bottom of ball to top of trapdoor

How many times should measurements be repeated for each distance?

At least three times

Which time value should be used in calculations?

The smallest time value

How many different distances should the procedure be repeated with?

Five or six

What should be plotted on the y-axis of the graph?

ss

How is gg calculated from the graph's slope?

gg = 2 × slope

What type of object minimises air resistance?

Small, smooth, dense metal sphere

How should parallax error be avoided when measuring distance?

Ensure eye is level with points

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