Step 3: Measure the Speed of the Toy Car on the Lower Track
Calculate the average time it took the car to reach each
checkpoint. Record the average times in Table B of your
Student Guide
The average time to the first quarter checkpoint is
seconds
The average time to the second quarter checkpoint is
seconds
The average time to the third quarter checkpoint is
A seconds
The average time to the finish line is seconds.

What happens in a global convection cell

Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a

In a system, when potential energy decreases, then entropy also decreases. true false