Significant Figures (Week 1)

Saturday, 3 March 2018

11:02 PM

Machine generated alternative text: Question 8 Correct Marked out of 2 00 Flag question A student working with a loaded glider on a linear air track determines that the mass ottne glider is (166.0 ± 0.1) x 10 -3 kg. At a paäicular instant ne determines its speed on the air track to be (2.00 ± 0.20) ms -1. Calculate the kinetic energy ottne glider witn its associated unceäainty by filling in the table below. The kinetic energy should be given to 3 significant tigures_ Value mass, m 0.1660 speed, 200 speed2 4.00 Kinetic 0_332 Energy Absolute Error 0.0001 0.20 0_80 Percentage Error C) 0_0602 10.00 20.00 20.00 Symbol tor unit kg (ms-1)2 C) Enter this as accurately as possible as this is a step in the working.

 

Machine generated alternative text: Question 7 Correct Marked out of 2 00 Flag question In an electric jug a potential difference, V, of (1200 ± 5.0%) volts is applied across a coil ot electrical resistance, R, ot (80 ± 08) Q. Determine the power, P, dissipated in the coil according to the relationship: p = v2/R by completing the table below Include error estimates. Remember that the absolute error should nave the same number ot decimal places as the value. The calculated values need to nave the same number ot significant figures as the data in the questiom P should be given to 2 ' significant tigures_ Value Potential Difference, V 12.00 v2 Resistance, R power = V2/R 144 oo 8.0 18 Absolute Error 0.60 14.4 0.8 3 Percentage Error C) 5.0 10.0 10.0 14.1 Symbol tor unit v2 w C) Enter this as accurately as possible as this is a step in the working.

 

 

Created with Microsoft OneNote 2016.